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Research Articles 3 Using the Interactive Healthy Eating Index to Assess the Quality of College Students' Diets Hazel Hiza and Shirley A. Gerrior 13 Consumers of Reduced-Fat, Skim, and Whole Milks: Intake Status of Micronutrients and Dietary Fiber Helen H-C. Lee and Shirley A. Gerrior 25 Expenditures on Children by Families, 2000 PROPE TV LIBR Mark Uno 1 43 Selected Food and Nutrient Highlights of the 20th Century: U.S. Food Supply Series Lisa Bente and Shirley A. Gerrior 52 The Quality of Young Children's Diets Mark Uno, P. Peter Basiotis, Shirley A. Gerrior, and Andrea Carlson Research Briefs 61 Dietary Guidance, 1970 to 1999: Does the U.S. Food Supply Support It? Shirley A. Gerrior and Lisa Bente 67 Insight 20: Consumption of Food Group Servings: People's Perceptions vs. Reality P. Peter Basiotis, Mark Uno, and Julia M. Dinkins 71 Insight 22: Serving Sizes in the Food Guide Pyramid and on the Nutrition Facts Label: What's Different and Why? David Herring, Patricia Britten, Carole Davis, and Kim Tuepker Regular Items USDA Activities • Federal Studies • Journal Abstracts • Food Plans • Consumer Prices • Poverty Thresholds Ann M. Veneman, Secretary U.S. Department of Agriculture Eric M. Bost, Under Secretary Food, Nutrition, and Consumer Services Steven N. Christensen, Acting Deputy Director Center for Nutrition Policy and Promotion P. Peter Basiotis, Director Nutrition Policy and Analysis Staff The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, gender, religion, age, disability, political beliefs, sexual orientation, or marital or family status. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write USDA, Director, Office of Civil Rights, Room 326-W, Whitten Building, 14th and Independence Avenue, SW, Washington, DC 20250- 9410 or call (202) 720-5964 (voice and TDD). USDA is an equal opportunity provider and employer. Editor Julia M. Dinkins Assistant Editor David M. Herring Features Editor Mark Uno Managing Editor Jane W. Fleming Peer Review Coordinator Hazel Hiza Family Economics and Nutrition Review is written and published semiannually by the Center for Nutrition Policy and Promotion,U.S. Department of Agriculture, Washington, DC. The Secretary of Agriculture has determined that publication of this periodical is necessary in the transaction of the public business required by law of the Department. This publication is not copyrighted. Contents may be reprinted without permission, but credit to Family Economics and Nutrition Review would be appreciated. Use of commercial or trade names does not imply approval or constitute endorsement by USDA. Family Economics and Nutrition Review is indexed in the following databases: AGRICOLA, Ageline, Economic Literature Index, ERIC, Family Studies, PAIS, and Sociological Abstracts. Family Economics and Nutrition Review is for sale by the Superintendent of Documents. Subscription price is $13 per year ($18.20 for foreign addresses). Send subscription order and change of address to Superintendent of Documents, P.O. Box 371954, Pittsburgh, PA 15250-7954. (See subscription form on p. 95.) Original manuscripts are accepted for publication. (See "guidelines for authors" on back inside cover.) Suggestions or comments concerning this publication should be addressed to Julia M. Dinkins, Editor, Family Economics and Nutrition Review, Center for Nutrition Policy and Promotion, USDA, 3101 Park Center Drive, Room 1034, Alexandria, VA 22302-1594. The Family Economics and Nutrition Review is now available at http:// www.cnpp.usda.gov. (See p. 93.) Research Articles 3 Using the Interactive Healthy Eating Index to Assess the Quality of College Students' Diets Hazel Hiza and Shirley A. Gerrior 13 Consumers of Reduced-Fat, Skim, and Whole Milks: Intake Status of 25 Micronutrients and Dietary Fiber Helen H-C. Lee and Shirley A. Gerrior Expenditures on Children by Families, 2000 Mark Uno PROPERTY OF THE LIBRARY AUG 1 3 2002 43 Selected Food and Nutrient Highlights of the 20th 8W1W~~ ty of N th C I' u.s. Food Supply Series or aroma LisaBenteandShirleyA. Gerrior at Greensboro 52 The Quality of Young Children's Diets Mark Uno, P. Peter Basiotis, Shirley A. Gerrior, and Andrea Carlson Research Briefs 61 Dietary Guidance, 1970 to 1999: Does the U.S. Food Supply Support It? Shirley A. Gerrior and Lisa Bente 67 Insight 20: Consumption of Food Group Servings: People's Perceptions vs. Reality P. Peter Basiotis, Mark Uno, and Julia M. Dinkins 71 Insight 22: Serving Sizes in the Food Guide Pyramid and on the Nutrition Facts Label: What's Different and Why? David Herring, Patricia Britten, Carole Davis, and Kim Tuepker Regular Items 74 Research and Evaluation Activities in USDA 78 Federal Studies 88 Journal Abstracts 90 Official USDA Food Plans: Cost of Food at Home at Four Levels, U.S. Average, May 2002 91 Consumer Prices 92 U.S. Poverty Thresholds and Related Statistics Volume 14, Number 1 2002 Hazel Hiza, PhD, RD Shirley A. Gerrior, PhD, RD U.S. Department of Agriculture Center for Nutrition Policy and Promotion 2002 Vol. 14 No. 1 Research Articles Using the Interactive Healthy Eating Index to Assess the Quality of College Students' Diets The Interactive Healthy Eating Index (IHEI) is an Internet application of the Healthy Eating Index (HE I)-a single summary measure of overall diet quality that was developed by the U.S. Department of Agriculture. We used this application to assess the quality of the diets of 100 students at a State university. Paired sample t tests were used to analyze students' 1-day dietary records to compare students' mean HEI and component scores with dietary recommendations. The mean overall HEI score (67.2 of a possible 100) for the total sample exceeded the national average for a similar age group by 6.3 points. Students who were female, less than 20 years old, or nonscience majors had the highest HEI scores. While the students' overall HEI score was higher than the national average, students' diets still need improvement. Our findings show that the IHEI can be applied in a university setting to analyze the quality of students' diets. The IHEI can also be used as a valuable component of collegiate introductory nutrition and health courses. E xtensive research has been conducted on the links between diet and chronic disease, but little has been conducted on methods to assess overall diet quality. To measure how well American diets conform to recommendations, the U.S. Department of Agriculture's (USDA) Center for Nutrition Policy and Promotion (CNPP) developed the Healthy Eating Index (HEI), a single summary measure (or "report card") of overall diet quality in 1995 (Kennedy, Bowman, Lino, Gerrior & Basiotis, 1999; Frazao, 1999). The HEI provides a "snapshot" of the types of foods people eat, the variety in their diets, and the degree to which their diets comply with Federal dietary guidance (i.e., specific recommendations of the Dietary Guidelines for Americans) (Bowman, Lino, Gerrior & Basiotis, 1998; U.S. Department of Agriculture [USDA] and U.S. Department of Health and Human Services [DHHS], 1995) and the Food Guide Pyramid (USDA, 1996). The HEI provides insight into the types of dietary changes needed to improve the eating patterns of Americans. Many Americans are confused about what to eat (and what not to eat); others fail to follow healthful eating practices even when they understand basic nutrition (Frazao, 1999). Thus, the USDA developed the Interactive Healthy Eating Index (IHEI) to increase awareness of diet quality and to promote healthful eating habits. Based on the HEI, the IHEI is a consumeroriented, online dietary intake assessment tool that allows Americans (2 years and older) to evaluate the quality of their diets in terms of current dietary guidance. The IHEI also provides immediate feedback via scoring options and targeted nutrition education messages. Along with increasing awareness of the quality of a person's diet, the IHEI helps those who may 3 have access to nutrition information but who may not have the background to apply or interpret it conect1y. College students are expected to respond favorably to the IHEI and may benefit positively from its use. They are both interested in nutrition information (Hertzler & Frary, 1992) and are computer literate. Today's college students take basic nutrition courses in record numbers. Many of ti)ese nutrition courses are now computerassisted instruction or computerassisted learning (Shah, George & Himburg, 1999). Also, today's young adults are the first generation to have grown up with the benefit of dietary recommendations to reduce intake of fat and cholesterol and increase intake of complex carbohydrate and fiber. Hence, college-age Americans introduced as children to dietary guidance, such as the Dietary Guidelines for Americans1 and the USDA Food Guide Pyramid (USDA & DHHS, 1995; USDA, 1996), could be expected to have diets reflective of this guidance. Overall, however, college students often develop poor eating habits. These practices may result from skipping meals, choosing inappropriate foods, dieting excessively, consuming inappropriate snacks, and avoiding certain food s (Harless, Koch & Slapar, 1996). Often, these practices result in low intake or imbalance of calories and important nutrients. Some college students eat foods low in fat (e.g., reduced-fat milks) and high in complex carbohydrates (e.g. , pasta). Many others, however, frequently eat fastfood and restaurant foods, both of which are associated with higher 1 Since the completion of this study and the development of the IHEI, a new version of the Dietary Guidelines for Americans was released (USDA & DHHS, 2000). Also, an updated version of the IHEI is now available on the USDA Web site at www.cnpp.usda.gov. 4 intakes of fat and sodium and lower intakes of dietary fiber and calcium (Georgiou et al., 1997). These behaviors may contribute to inadequacies in the diets of college students, affect their health status during a formative period of growth and development, and eventually influence the quality of life they may experience in their middleaged and senior years. Consequently, this population needs more information about making dietary choices that include more nutrient-dense foods (especially for calcium and iron) and reduced-fat foods (Hertzler et al., 1992). This study assessed the quality of college students' diets. The IHEI was used to assess that quality. To our knowledge, this study is the first to use and evaluate the IHEI as a measure of the quality of people's diets. Indices An important definition in this study is diet quality, a definition that variesdepending on the attributes selected. As applied in this study, diet quality consists of a comprehensive set of indicators that incorporated nutrient needs and recommendations of food servings into one measure, the Healthy Eating Index (Kennedy et al., 1995). Healthy Eating Index The total HEI score is the sum of 10 equally weighted dietary components, each having a maximum score of 10 and a minimum score of zero. A maximum score of 10 was assigned to each of the five food group components of the HEI if a person's diet met or exceeded the recommended number of servings for a food group of the Food Guide Pyramid. High component scores indicate intakes close to the recommended ranges or amounts; low component scores, less compliance with the recommended ranges or amounts. The 10 components each represent various aspects of a healthful diet. • Components 1 through 5 measure the degree to which a person's diet conforms to the recommended servings of the Food Guide Pyramid for the five major food groups: grains, vegetables, fruits, milk, and meat. • Component 6 measures total fat consumption as a percentage of total food energy intake. • Component 7 measures saturated fat consumption as a percentage of t" t" ' food energy intake. • Component 8 measures total cholesterol intake. • Component 9 measures total sodium intake. Component 10 measures the variety in a person's diet. In this study, variety in the diet was based on the total number of different foods eaten in a day in amounts sufficient to contribute at least one-half of a food group.2 The maximum overall HEI score a person can receive is 100. A score greater than 80 classifies a diet as "good"; scores between 51 and 80 classify a diet as "needs improvement"; a score less than 51 classifies a diet as "poor." Because no single dietary component defmes the Index, doing well on only one component does not ensure a high overall score. A more detailed description of the development of the HEI is described elsewhere (Bowman etal., 1998). 20thers have reported diet variety as the total number of unique foods consumed in a day (Kant, 1996). Family Economics and Nutrition Review Interactive Healthy Eating Index An online dietary assessment tool, the IHEI uses the same data sources as those used for the HEI. The food descriptor files, which contain more than 8,000 foods, were modified to best reflect users' food choices and include fast-foods and brand names for numerous food items reported as being consumed by survey respondents. These data reflected the food choices of a sample population of about 15,000 individuals. Modified food descriptions were matched to appropriate data from several files of the USDA's Continuing Survey of Food Intakes by Individuals (CSFll): nutrients, serving measures, and Pyramid servings. When a food could not be linked directly to a Pyramid serving, it was assigned a Pyramid serving of a similar food. Methods Subjects In the spring of 1999, we conducted a pilot study at a State university to test the application of the IHEI. The subjects, 250 college students enrolled in an introductory nutrition course, represented a variety of academic majors. Many students enrolled in the course to meet a science requirement. Many students did not provide demographic information or did not complete all necessary components of the IHEI; thus, the final sample size was 100. Data Collection As an assignment, students evaluated the IHEI and completed a 1-day dietary food record. All students were given guidelines for using the IHEI and an evaluation form to complete. After accessing the IHEI from the university's computer laboratory, students entered information about 2002 Vol. 14 No. 1 their age, gender, and diet for selfevaluation. Each student's information was processed by a Web server and linked to the databases that include information on nutrients, serving measures, and Pyramid servings. This process calculated each student's 10 component scores and an overall HEI score, as well as nutrient intakes of up to 24 nutrients and dietary components. The evaluation forms and students' IHEI information were provided to course instructors for purposes related to the assignment and then given to researchers for further analysis. Analysis An IHEI student database was created by using the Statistical Package for the Social Sciences (SPSS, 1997); a coding manual was developed to account for all collected data. The 106 variables consisted of the students' demographic information, HEI and component score variables, Pyramid servings of the five major food groups, national average comparisons of HEI and component scores, nutrient intakes, and recommended dietary intake for each nutrient. Subjects were divided into the following subgroups: gender, age categories (less than 20 years and 20 years or older), and majors (science: dentistry, engineering science, agricultural science and forestry, medicine, nursing, and pharmacy; and nonscience: arts and sciences, business and economics, creative arts, human resources and education, journalism, law, and social work). SPSS for windows was used to conduct Student t tests (SPSS, 1997), and paired sample t tests were used to compare mean scores between subgroups (the students' intake and the recommendation) for HEI scores, HEI component scores, nutrient intakes, and Pyramid servings. The independent t test was applied to compare these variables based on selected demographic characteristics of the subjects. Students, regardless of age category, did not meet the minimum daily recommendations for fruits, milk, and meat. 5 Results and Discussion Demographics of Sample Over twice as many female students as male students (70 vs. 30 percent) provided a 24-hour dietary record (fig. 1). Most (three-fifths) of the students were 20 years old or older, and over half were science majors (55 percent); that is, they majored in dentistry, engineering science, agricultural science and forestry, medicine, nursing, and pharmacy. Food Guide Pyramid Servings For this college group, the recommended daily minimum number of servings of the Food Guide Pyramid ranges from 2 to 6 (table 1). To meet the daily minimum servings, this age group needs to consume a minimum of 2 servings each of fruits, milk, and meat; 3 servings of vegetables; and 6 servings of grains. This student group (overall and by gender, age, and major) tended to meet the minimum recommendations for grains: 6.2 to 6.5 (table 2). Males consumed significantly fewer daily servings of fruits (1.3) and milk (1.6) than are recommended; females consumed significantly fewer servings of vegetables (2.5), fruits (1.4), milk (1.3), and meat (1.2). Students, regardless of age category, did not meet the minimum daily recommendations for fruits, milk, and meat. Whereas the older group consumed 1.2 to 1.4 servings of these food groups, the younger age group consumed 1.4 to 1.6 servings. Both age groups met or exceeded-but not significantly-the minimum recommendations for grains. Whereas nonscience majors failed to meet the recommended daily minimum servings of fruits and milk, science majors failed to meet the recommendations for vegetables, fruits, milk, and meat. Each group's intake 6 Figure 1. Selected demographic characteristics of college students 45% .••.•·.•·.•·.•·.•.••· •.•··•··•··•··•··•··•··•··•··•··•··•··• ··.•.:•.:•.:·.:.:•· :.:•·:·:·:·:•·:·:•·:·:·:·:··::··:•:··:•:··::··::··:•:··:•:··:•·:·:•·: ··•··••·•··••·•·•··•··• •••••.•• •·•·•··•·•·• ::::::::::::. ........... ·: ·:·:·:•:·:•::· :•·..•..•..·•..••..•·..•·..•....•·..•·..•·..•·..•..•..·.•...•·..•·..•·..•.·.•...•.·..•·..•·..•·..•..•..· ·:·:·:·:·:·:·:·:·:·:·:·:·:·:·:•·:•·•:!·•: ~Females • Males 2lJ ~20 years • <20 years [88 Science• • Nonscience•• • Science majors: dentistry, engineering science, agricultural science and forestry, medicine, nursing, and pharmacy. •• Nonscience majors: arts and sciences, business and economics, creative arts, human resources and education, journalism, law, physical education, and social work. n=100. Mean age = 20.5 years. Table 1. Recommended minimum and maximum number of USDA Food Guide Pyramid servings per day, by age-gender categories of college students Category Energy Grains Vegetables Fruits Milk Meat1 (kilocalories) Females 11-24 2200 6-9 3-4 2-3 2-3 2-2.4 Females 25-50 2200 6-9 3-4 2-3 2·2 2-2.4 Males 19-24 2900 6-11 3-5 2-4 2·3 2-2.8 Males25-50 2900 6-11 3-5 2-4 2-2 2-2.8 Males 15-18 3000 6-11 3-5 2-4 2-3 2-2.8 10ne serving of meat equals 2.5 ounces of lean meat. Source: Bowman, S.A., Uno, M., Gerrior, S.A., and Basiotis, P.P. 1998. The Healthy Eating Index: 1994·96. U.S. Department of Agriculture, Center for Nutrition Policy and Promotion. CNPP·5. represented shortfalls of 0.6 to 0. 7 daily servings of each of these food groups. Nonscience majors met or exceeded the recommended minimum number of daily servings of grain~ (6.5 vs. 6.0). On average, students in this study did not meet the maximum recommended serving of any of the five major food groups of the Food Guide Pyramid. Our findings disagree with those of Schuette and colleagues (1996) who reported that college students in an introductory nutrition course had daily mean intakes from each of the five groups at or above the recommended minimum number of servings. Previous research, however, shows that even Family Economics and Nutrition Review Table 2. Mean Pyramid servings consumed by college students, 1-day intake1 Total Pyramid sample Gender Age Major2 food groups (n=100) Male Female <20 years ~20 years Science Nonscience Grains 6.3 6.3 6.2 6.3 6.2 5.0 6.5 Vegetables 2.8 3.4 2.5* 2.9 2.7 2.4* 3.2 Fruits 1.4* 1.3* 1.4* 1.5* 1.2* 1.3* 1.4* Milk 1.4* 1.6* 1.3* 1.4* 1.3* 1.4* 1.3* Meat 1.5* 2.2 1.2* 1.6* 1.5* 1.3* 1.7 1 Paired ttests were used to compare mean (± standard error of the mean) intake with the recommended minimum number of servings. 2Science majors: dentistry, engineering science, agricultural science and forestry, medicine, nursing, and pharmacy. Nonscience majors: arts and sciences, business and economics, creative arts, human resources and education, journalism, law, physical education, and social work. • Values are significantly lower than the recommended minimum number of Pyramid servings (p< .05). students consuming foods at an upper level distribution (the 75'h percentile of the median) did not meet the recommended daily minimum servings of grains and vegetables but did meet the recommended servings for fruit, milk, and meat (Georgiou et al., 1997). This finding illustrates how few college students actually meet the recommended maximum serving of the Food Guide Pyramid and is supportive of our results. However, in each of these studies, underreporting the types of food consumed and underestimating their portion sizes may be a factor. Thus, actual intake of these food groups may be higher than indicated. Students have been found to underestimate food portion sizes when using the Food Guide Pyramid. This is a source of error that influences assessment of nutritional adequacy (Tavelli, Beerman, Shultz & Heiss, 1998). Selected Nutrient Intakes Female and male students' intakes met or exceeded the 1989 Recommended Dietary Allowances (RDA) for most of the selected nutrients-vitamins A, C, and B6; folate; and iron (table 3). Female students' intake of calcium, however, was significantly lower than the RDA. Although students' reported intakes of vitamins A and C exceeded 2002 Vol. 14 No. 1 100 percent of the RDA, the total sample still failed to meet the minimum Pyramid servings of fruits and vegetables (table 2). Fruits and vegetables are the key sources of vitamins A and C as well as important contributors to folate and vitamin B6. Underreporting of foods, such as orange juice (a beverage vs. a food), and the vegetables in grain mixtures and other mixed dishes-such as pizza and Mexican entrees, which are popular with college students-is assumed by the authors and helps to explain this discrepancy. Also, the fact that male students and nonscience majors met the minimum number of vegetable servings may be explained in part by compliance with recommendations because of an awareness of the benefits of healthful nutrition. Many non-nutrition majors enrolled in basic nutrition courses make positive dietary changes (Mitchell, 1990). We expected a more apparent link between the mean intakes of nutrients and food sources-such as a link between vitamin A and vegetables and fruits, vitamin C and fruits, folate and fruits and grains, and iron and fortified grains and meat. The mean intakes of these nutrients appear to be adequate for both male and female students, but these same students generally consumed less than the recommended minimum number of servings (with the exception of grains) from these food groups. This finding is supported by Georgiou and colleagues (1997) who determined that college students and graduates ate more grains high in dietary fiber, more fruits, more darkgreen vegetables, and more lowfat milks and meats than did nonstudents. Females, however, still failed to meet the minimum recommendations for grains, vegetables, and fruits. Our findings are also similar to those of Tavelli and colleagues (1998) who found that although the mean intakes of nutrients appear adequate, college students often consumed less than the recommended minimum number of servings from the Food Guide Pyramid. Thus, using the minimum recommendations of the Food Guide Pyramid as criteria of dietary adequacy may be misleading in terms of actual nutrient intake for some nutrients. While the Pyramid may be a good indicator for screening nutritionally inadequate diets, further analysis of the nutritional adequacy of the total diet is needed to account for nutrient contributions from food mixtures and reported incorrect estimations of serving sizes (Schuette, Song & Hoerr, 1996). 7 Female and male students' intakes met or exceeded the 1989 Recommended Dietary Allowances (RDA) for most of the selected nutrientsvitamins A, C, and 86; folate; and iron. 8 Table 3. College students' mean dietary intakes 1 and percent Recommended Dietary Allowances (ADA) of selected nutrients, compared w1th the 1989 ADA Dietary intake Nutrient Males Females Mean ± SEM (% RDA) Vitamin A (RE) Vitamin C (mg) Vitamin 86 (mg) Folate (meg) Iron (mg) Calcium (mg) 1642.0 ± 468 (1 69) 1363.0 ± 352 (170) 184.0 ± 49 (307) 138.0 ± 16 (231 ) 2.8 ± .22 (140) 2.5 ± .27 (167) 371 .0 ± 56 (1 86) 376.0 ± 59 (220) 19.6 ± 1.9 (1 94) 20.9 ± 3.0 (140) 1137.0 ± 150 (96) 827.0* ± 71 (70) 1 Paried ttests were used to compare means ( :t standard error of the mean). 'The value is significantly lower than the recommendation. Mean HEI and HEI Component Scores National average3 values were based on data obtained from the CSFII, 1994- 1996. The data for the students were collected in 1999. Compared with the national average, student scores for fruits, total fats, saturated fats, cholesterol, and variety were significantly higher, averaging about 1 to 2 points more (table 4). Compared with the national average HEI score (60.9 of a possible 100), the overall score for the female, rather than male, college students was significantly higher-69.3 versus 62.2 (table 5). The females also had significantly higher component scores for fruits, total fats, saturated fats, cholesterol, and variety. Males, however, had a significantly lower score for grains: 5.7 versus 6.6 (national average). HEI scores based on students' age were significantly higher than the national average (69.9 vs. 61.1 for younger students and 65.5 vs. 60.8 for older students) as were scores for total fats and saturated fats. Whereas the national 3This average is deri ved from a population with similar distributions of age and gender as those of the college students. average HEI scores for total fats and saturated fats were 7.0 and 6.3, respectively, the students' scores, based on their age, for total fats ranged from 8.7 to 9.0; their scores for saturated fats ranged from 8.2 to 8.4. Younger students had higher mean scores for each of the five food groups, compared with older students, but older students had higher cholesterol scores. With total HEI scores of 66.5 to 68.0, science and nonscience majors' scores, respectively, surpassed the national by 5.4 to 7.9 points. Nonscience majors had a higher mean HEI score than did science majors because of higher scores (0.2 to 1.5 points) for grains, vegetables, meat, and variety. Sodium scores were generally lower (but not significantly) for all groups studied, compared with the national average, except for those of science majors and females. Sodium scores ranged from 4.0 to 6.6; the national average was 6.1. Sodium intake may be related to the type of snack, as well as the mix of foods, consumed by these students. For example, lowfat grain snacks are often salty but promoted as a healthful food choice. Meals at fastfood restaurants may also make appreciable contributions to sodi um intake. Family Economics and Nutrition Review Table 4. Mean HEI and component scores of college students, compared with a national average 1 HEI National College students component average (n=100) Total HEI 60.9±.10 67.2 ± 1.25 Grains 6.6 ± .03 6.6 ± .29 Vegetables 5.9 ± .02 6.5 ± .38 Fruits 3.2 ± .02 4.2 ± .40* Milk 4.7 ± .03 4.4 ± .35 Meats 6.2 ± .08 6.0 ± .36 Total fats 7.0 ± .01 8.8 ± .26* Saturated fats 6.3 ± .01 8.3 ± .32* Cholesterol 7.9 ± .09 8.9 ± .28* Sodium 6.1 ± .14 5.8 ± .42 Variety 7.1 ± .02 7.9 ± .31** 1Scores are for a population with age and gender distributions that are similar to those of the sample. *Scores are significantly different from the national average, P< 0.01. **Scores are significantly different from the national average, p< 0.05. While we did not analyze fat and saturated fat as a percentage of total food energy, scores indicated that the fat and saturated fat intakes of these students were lower than the national average. A translation of a score to actual percentage of fat is 31 .5 percent (score of 9.1) for females and 33 percent (score of 8.1) for males. Hertzler and Frary (1996) reported student fat intake ranges from 25 to 29 percent for females and males, respectively. Troyer et al. (1990) reported fat intake ranges from 34 to 36 percent. The lower intake of fat as a percentage of total kilocalories is consistent among students who select lower fat foods and have concerns about food and weight (Hertzler & Frary, 1996). The Dietary Guidelines for Americans, the Food Guide Pyramid, and the National Council's Diet and Health Report all stress the importance of variety in a healthful diet (USDA, 1995; National Research Council, 1989). As with the nutrients of moderation (total fats, saturated fats, and cholesterol), variety scores for 2002 Vol. 14 No. 1 students who were female, less than 20 years old, and nonscience majors were significantly higher than the national average (8.0, 8.3, and 8.4, respectively, vs. 7.1). Concerns about health and weight management commonly expressed by female students, possible younger students still living at home and eating with family members, and an increased awareness of nutrition and health issues by non-nutrition students may be factors contributing to their dietary choices and the subsequent overall HEI and component scores seen here. Limitations of Study The limitations of this study relate to the samples, dietary assessment, and the IHEI food database. We compared 1999 college students' HEI scores with those based on a 1994-1996 national average; hence, the differences in scores may not represent a true change in dietary intakes. Because we used a convenience sample, the subjects in this study may not have been representative of other college students. Thus, selection bias may have affected our results, and our findings may not be geographically representative of college students living in the general university community. In particular, because ethnic minorities were underrepresented in this sample, care should be used in extrapolating the findings of this study to other college populations or to young adults in general. One-day dietary records were used to assess dietary intakes: such data may be poor indicators of a person's usual diet, but a 1-day dietary record is a generally acceptable means of characterizing a group's intake when the sample size is sufficient (Basiotis, Welsh, Cronin, Kelsay & Mertz, 1987; Levine & Guthrie, 1997). The use of a 1-day dietary record, however, may not reflect a person's normal eating pattern. When providing dietary information, survey respondents tend to both underreport consumption of certain foodsespecially those high in fat and calories-and overreport consumption of other foods-such as those high in nutrients. Pertinent to this study is the possible omission of some foods consumed by college students, including high-protein and sports-type drinks. These foods are not in the foods database of the IHEI. The IHEI used in this pilot study was a prototype, and its application was evaluated by the students. Some aspects of the IHEI program were identified as needing improvement. In particular, the types and number of food choices were somewhat limited. Future work on the IHEI design will include an updated food database that includes many more frequently consumed foods, as well as the addition of a physical activity component. 9 Table 5. Mean HEI and component scores of college students, by selected characteristics HEI Gender Age Major1 component Male Female <20 years ;::20 years Science Nonscience HEI 62.2 ± 2.1 69.3 ± 1.5* 69.9 ± 1.9* 65.5 ± 1.6* 66.5 ± 1.7* 68.0 ± 1.8* Grains 5.7 ± .61* 6.9 ± .31 6.8 ± .45 6.4 ± .37 6.5 ± .34 6.7 ± .49 Vegetables 6.8 ± .71 6.3 ± .46 6.8 ± .58 6.2 ±.51 5.8 ±.55 7.3 ±.51 Fruits 3.4 ± .71 4.6 ± .48** 4.9 ± .68** 3.8 ± .49 4.2 ±.55 4.2 ±.59 Milk 4.9 ± .72 4.2 ± .39 4.5 ± .55 4.4 ± .46 4.4 ± .46 4.4 ±.54 Meats 7.8 ±.57 5.2 ± .42 6.4 ± .60 5.7 ± .45 5.4 ± .51 6.8 ± .48 Total fats 8.1 ±.58 9.1±.28* 9.0 ± .35* 8.7 ± .37* 9.0 ± .30* 8.5 ± .47* Saturated fats 7.5 ± .70 8.6 ± .33* 8.4± .51* 8.2 ± .40* 8.4 ± .39* 8.1 ±.51* Cholesterol 6.7 ± .79 9.9± .10* 8.8 ± .47 9.0 ± .36* 9.0 ± .36* 8.8 ± .45* Sodium 4.0 ± .78 6.6 ± .47 6.1 ± .61 5.6 ±.57 6.6 ±.54 4.8 ± .63 Variety 7.3 ±.53 8.0 ± .38* 8.3 ± .48** 7.5 ± .40 7.2 ± .47 8.4 ± .36* 1Science majors: dentistry, engineering science, agricultural science and forestry, medicine, nursing, and pharmacy. Nonscience majors: arts and sciences, business and economics, creative arts, human resources and education, journalism, law, physical education, and social work. 'Scores are significantly different from a national sample with comparable characteristics, p< .01. "Scores are significantly different from a national sample with comparable characteristics, p< .05. n=100. Conclusions Current research on diet and chronic disease has been lacking in appropriate methods to evaluate overall diet quality. In this study, we used the IHEI to assess the quality of college students' diets. The IHEI proved to be an effective dietary assessment tool for this sample. As such, it should be a component of basic introductory nutrition courses because the information it provides will help educators tailor their courses. For example, analyses from the IHEI can help instructors address specific topics in their course curriculum. This tailoring of nutrition education to food habits and eating practices of subgroups of the college population should result in nutrition courses and education programs that are more meaningful. Ultimately, this type of nutrition education at the college level can result in many positive lifestyle changes that 10 can help achieve the goals of nutrition and health specified in the Dietary Guidelines for Americans (USDA, 2000) and in Healthy People, 2010 (DHHS, 2000). In addition, our findings and the methods used may serve as a basis for future research on diet quality and risks of related chronic diseases among college students as well as in other subgroups of the American population. Family Economics and Nutrition Review References Basiotis, P.P., Welsh, S.O., Cronin, F.J., Kelsay, J.L., & Mertz, W. (1987). Number of days of food intake records required to estimate individual and group nutrient intakes with defined confidence. The Journal of Nutrition 117(9):1638- 1641. Bowman, S.A., Lino, M., Gerrior, S.A, & Basiotis, P.P. (1998). The Healthy Eating Index 1994-96. CNPP-5. U.S. Department of Agriculture, Center for Nutrition Policy and Promotion. Douglass, J.S. (1998). Development of Healthy Eating Index Scores for the 1994- 96 USDA Continuing Survey uf Food Intakes by Individuals. f'.:-liqgton, VA: TASEnviron. Frazao, E. (1999). High costs of poor eating patterns in the United States. In E. Frazao (Ed.), America's Eating Habits: Changes & Consequences. Agriculture Information Bulletin No. 750. U.S. Department of Agriculture, Economic Research Service. Georgiou, C.C., Betts, N.M, Hoerr, S.L., Keirn, K., Peters, P.A., Stewart, B., et al. (1997). Among young adults, college students and graduates practiced more healthful habits and made more healthful food choices than did nonstudents. Journal of the American Dietetic Association 97(7):754-759. Harless, T., Koch, J., & Slapar, H. (1996). Diet and health among college students. HPER C511 Course for Epidemiology, pp. 1-17. Hertzler, A.A., & Frary, R.B. (1996). Family factors and fat consumption of college students. Journal of the American Dietetic Association 96(7):711-714. Hertzler, A.A. & Frary, R. (1992). Dietary status and eating out practices of college students. Journal of the American Dietetic Association 92(7):867-869. Kant, A.K. (1996). Indexes of overall diet quality: A review. Journal of the American Dietetic Association 96(8):785-791. Kennedy, E., Bowman, S., Lino, M., Gerrior, S., & Basiotis, P. (1999). Diet quality of Americans. In E. Frazao (Ed.), America's Eating Habits: Changes & Consequences. Agriculture Information Bulletin No. 750. U.S. Department of Agriculture, Economic Research Service. Kennedy, E.T., Ohls, J., Carlson, S., & Fleming, K. (1995). The Healthy Eating Index: Design and application. Journal of the American Dietetic Association 95( 10): 1103-1108. Levine, E., & Guthrie, J. ( 1997). Nutrient intake and eating patterns of teenagers. Family Economics and Nutrition Review 10(3):20-35. Mitchell, S.J. (1990). Changes after taking a college basic nutrition course. Journal of the American Dietetic Association 90(7):955-961. 2002 Vol. 14 No. 1 11 National Research Council, Committee on Diet and Health, Food and Nutrition Board. (1989). Diet and Health: Implications for Reducing Chronic Disease Risk. Washington, DC: National Academy Press. Schuette, L.K., Song, W.O., & Hoerr, S.L. (1996). Quantitative use of the Food Guide Pyramid to evaluate dietary intake of college students. Journal of the American Dietetic Association 96(5):453-457. Shah, Z., George, V.A., & Himburg, S.P. (1999). Computer-assisted education for dietetic students: A review of literature and selected software. Journal of Nutrition Education 31(5):255-261. Statistical Package for the Social Sciences. (1997). Version 9.0. Chicago, Ulinois: SPSS, Inc. Tavelli, S., Beerman, K., Shultz, J.E., & Heiss, C. (1998). Sources of error and nutritional adequacy of the Food Guide Pyramid. Journal of American College Health 47(2):77-82. Troyer, D., Ullrich, I.H., Yeater, R.A., & Hopewell, R. (1990). Physical activity and condition, dietary habits and serum lipids in second-year medical students. Journal of American College Health 9(4):303-307. U.S. Department of Agriculture, Center for Nutrition Policy and Promotion. (1996). The Food Guide Pyramid (slightly revised). Home and Garden Bulletin No.232. U.S. Department of Agriculture. U.S. Department of Agriculture and U.S. Department of Health and Human Services. (1995). Nutrition and Your Health: Dietary Guidelines for Americans (4th ed.). Home and Garden Bulletin No.232. U.S. Department of Agriculture. U.S. Department of Agriculture and U.S. Department of Health and Human Services. (2000). Nutrition and Your Health: Dietary Guidelines for Americans (5th ed.). Home and Garden Bulletin No.232. U.S. Department of Agriculture. U.S. Department of Health and Human Services. (2000). Healthy People, 2010. (Conference edition, in two volumes). Washington, DC. 12 Family Economics and Nutrition Review Helen H-C. Lee, PhD, CNS Food and Drug Administration Shirley A. Gerrior, PhD, RD U.S. Department of Agriculture Center for Nutrition Policy and Promotion 2002 Vol. 14 No. 1 Consumers of Reduced-Fat, Skim, and Whole Milks: Intake Status of Micronutrients and Dietary Fiber Data from the U.S. Department of Agriculture's Continuing Survey of Food Intakes by Individuals (CSFI I) 1989-91 were used to evaluate the intakes of vitamins, minerals, and dietary fiber by Americans (ages 2 years and older) who drank milk containing different levels of fat. Results show that people who drank reduced-fat or skim milk had sign1i:.:antly greater mean intakes of fat-soluble vitamins and carotene, water-soluble vitamins, minerals (except sodium), and dietary fiber, compared with people who drank whole milk. However, intakes of zinc and vitamin E (by males and females) and calcium (by females) did not meet 100 percent of the Recommended Dietary Allowances (RDAs), regardless of the type of milk consumed. Overall, those who drank skim milk had the most favorable micronutrient intakes. These results suggest that those individuals who chose to drink reduced-fat or skim milk also chose more micronutrient-dense foods, resulting in more healthful diets. Despite this improved dietary quality, intakes of foods rich in zinc, vitamin E, and calcium need to be encouraged, regardless of the type of milk consumed. S cientific evidence suggests that diet plays an important role in development of chronic diseases. In particular, excessive consumption of dietary fat has been implicated with increased risk of coronary heart disease and some types of cancer (National Research Council, 1989). To promote health and reduce risk of chronic diseases, dietary recommendations have been developed for Americans by the National Cancer Institute (Butrum, Clifford&Lanza, 1988), the U.S. Surgeon General (U.S. Department of Health and Human Services [DHHS], 1988), and others (Krauss et al., 1993). These recommendations are consistent with the Dietary Guidelines for Americans and the Food Guide Pyramid to reduce dietary intakes of total fat, saturated fat, and cholesterol; to moderate intakes of sugar, sodium, and alcohol; and to increase intake of dietary fiber (U.S. Department of Agriculture [USDA], 1992; USDA & DHHS, 1995). The Dietary Guidelines for Americans recommend that Americans choose a diet that provides no more than 30 percent of total calories from fat, less than 10 percent of total calories from saturated fat, and no more than 300 milligrams of cholesterol per day. Dietary fat intake as a percentage of total calories has declined over the past 20 years. In 1977-78, intake of dietary fat was about 40 percent of energy (USDA, 1984). Intake of dietary fat as a percentage of energy decreased to 36 and 37 percent in 1985-86, 34 percent in 1989-91, and 33 percent in 1994-96(Tippettetal., 1995; USDA, 1986,1987, 1997). Along with this decrease, saturated fat also decreased as a percentage of energy-from 13 percent in 1985-86 to 11 percent in 1994- 96(USDA, 1986,1987, 1997).During 13 this time, daily grams of fat intake also decreased untill991 when its intake increased but remained below earlier levels. Since 1991, daily grams offat intake have remained steady or increased depending on the population subgroup studied (Anand & Basiotis, 1998; Morton & Guthrie, 1998). Nonetheless, the overall decrease in dietary fat over the past 20 years has been achieved, in part, by consumption of a variety of lower fat foods and fatmodified products (Buzzard et al., 1990; Gorbach, 1990; Lee, Gerrior & Smith, 1998; Peterson, Sigman-Grant, Eissenstat & Kris-Etherton, 1999; Wirfalt&Jeffery, 1997). From analyzing the nationwide food intake database of the Continuing Survey of Food Intakes by Individuals (CSFII) 1989-9l,Leeetal. (1998) reported that total fat intake of people who drank skim milk and reduced-fat milk' was significantly (p~0.05 ) lower than those who drank whole milk. Thus, the dietary goal of not more than 30 percent of caloric intake from total fat was achieved by several age groups that drank skim milk. This dietary goal was not achieved by any age groups of whole milk or reduced-fat milk drinkers. The authors found that people who drank reduced-fat and skim milks consumed more fruits and vegetables and less meat, compared with people who drank whole milk. A number of other studies also showed that inclusion of lower fat food choices-such as lower fat dairy products, leaner meats, and fat-modified bakery products-lowered intakes of total fat, saturated fat, and cholesterol and affected the micronutrient profile of the diet (Buzzard et al., 1990; Gorbach etal., 1990; Peterson et al., 1999; Wirfalt 1The term "reduced fat" as used in thjs paper includes reduced-fat milk (2%) and lowfat rllilk (1%). 14 & Jeffery, 1997). Two studies that examined food intakes and dietary patterns reported that as dietary fat intake decreased, intakes of reduced-fat milk, vegetables, fruit, cereals, fish, and chicken increased and intakes of whole milk and cheese, salty snacks, peanuts, red meats, eggs, desserts, and fried potatoes decreased (Gorbach et al., 1990; Subar, Ziegler, Patterson, Ursin & Graubard, 1994). The use of a fatreduction strategy appears to be associated with distinctively different food choices, and it has been suggested that people who choose food consistent with fat reduction make more conscious food choices that result in a morehealthfu1diet(Leeetal., 1998; Peterson eta!., 1999). Fluid milk has provided the consumer lower fat milk options for many years and is an integral part of the American diet. One popular strategy to lower the intake of dietary fat is the use of reduced-fat or skim milk in place of whole milk in the diet. In 1994, consumption of milk and milk products contributed about 12 percent of total fat and 6 percent of saturated fat to the U.S. food supply (Gerrior & Bente, 1997). Of this, wholemilk(with a38- percent share of the market) contributed 2.0 percent of the total fat and 3.8 percent of the saturated fat; reduced-fat and skim milks combined (62-percent share) contributed 1.5 percent of the total fat and 2.8 percent of the saturated fat (Gerrior & Bente, 1997). Milk and milk products also make important nutrient contributions to the diet. Along with providing high-quality protein, they are good sources of vitamins (A, D, B 12, and riboflavin) and minerals (calcium, phosphorus, magnesium, potassium, and zinc). Studies examining the effect of lower fat food choices on the nutritional profiles of the diet reported that adults who drank skim milk had significant! y higher intakes of vitamin A, vitamin B6 and magnesium, compared with users of higher fat milk (Peterson et al., 1999; Wirfalt&Jeffery, 1997). Understanding the effect of the use of milks on intakes of micronutrients and dietary fiber is important-considering the valuable nutrient contributions of fluid milk, its possible role in lowering the risk of osteoporosis, and the decreasing trend in consumption of fluid milk by Americans (Gerrior, Putnam & Bente, 1998). The purpose of this study was to evaluate the intakes of vitamins, minerals, and dietary fiber by Americans, 2 years and older, who drink different types of milk. 2 Survey and Methods This study used data from the CSFII, conducted by the U.S. Department of Agriculture (USDA) between 1989 and 1991 with a national stratified sample ofl5,128 individuals residing in the48 conterminous States and Washington, DC. Persons who were living away from home or in institutions were ineligible. The stratification took into account geographic location, degree of urbanization, and socioeconomic considerations. The survey used 1-day 24-hour recalls from an in-person interview and a 2-day dietary record. Detailed methods of the survey were published previously (Tippett et al., 1995). The present study used basic- or all-income data from respondents, aged 2 years and older, with a complete 3-day dietary intake. Excluded from the analysis were respondents who reported no food intake. The nutrient database used to 2For a report on energy compensation, energy-yeilding nutrient intakes, and foodgroup intakes by consumers of different types of milk in the present study population, see Peterson et al. ( 1999). Family Economics and Nutrition Review Table 1. Mean intakes of vitamins by males, by age and milk type1 Age and Vitamin A Carotene Vitamin E Thiamin Riboflavin Niacin Vitamin B6 Folate Vitamin B12 Vitamin C milk type (RE) (RE) (alpha·TE) (mg) (mg) (mg) (mg) (1-1-9) (1-1-9) (mg) ~2 years Whole 1004a 3goa o.a7a 1.72a 2.13a 23.1a 1.82a 272a 6.ooa g1a (41) (27) (0.24) (0.03) (0.04) (0.4) (0 .03) (6) (0.27) (2) Reduced-fat 1246b 476b g,77b ugb 2.31b 24.6b 2.02b 307b 6.1oa 104b (35) (24) (0.36) (0.03) (0.04) (0.4) (0.04) (7) (0.22) (3) Skim 1375b 57gc 10.05b 1.82b 2.2oab 24 .gb 2.10b 330C 6.2ga 125c (113) (54) (0.7) (0.07) (0.08) (O,g) (0.08) (14) (O.g5) (6) 20- 50 years Whole 1036a 460a 8.7aa 1.83a 2.2oa 26.1a 2.g6a 2aoa 6.14a goa (61) (4g) (0.40) (0.05) (0.07) (0.7) (0.06) (11) (0.27) (4) Reduced-fat 11g3 436a 10.60b 1.g2a 2.44b 27.5a 2.18b 31aab 6.7oa ggb (50) (33) (0.64) (0.05) (0 .07) (0.7) (0.06) (11) (0.37) (4) Skim 1231b 4aoa 11.75b 2.06a 2.43ab 27.7a 2.23b 356b 5.g5a 128C (7g) (66) (1 .16) (0.12) (0.12) (1.4) (0.12) (22) (0.37) (11) 51 - 64 years Whole 1186a 5gaa 8.66a 1.66a 2.ooa 23.oa 1.83a 266a o.o3a 81a (148) (134) (o.ga) (o.og) (0.12) (1.2) (o.og) (11) (0.54) (6) Reduced-fat 1437b 70gb 11.20b 1.76a 2.14a 25.ga 2.17b 324b 6.o5a 118b (105) (85) (1 .og) (0.07) (0.08) (0.8) (o.og) (18) (0 .41) (8) Skim 132gb 57aab g,15ab 1.65a 2.ooa 24.5a 2.14b 326b 5.7aa 12gb (146) (110) (1.52) (0.10) (0.12) (1 .3) (0 .14) (27) (0.63) (13) ~65 years Whole 1386a 423a 7.3ga 1.63a 2.04a 21.6a 1.83a 2goa a.a5a ega (227) (41) (0.52) (0.07) (0.12) (0.8) (o.og) (15) (2 .21) (6) Reduced-fat 1663a 708b 11 .31b 1.87b 2.2aa 24.6b 2.1ga 344b 7.01a 126b (132) (61) (1.1g) (0.08) (0.12) (1.0) (0.11) (21) (O,g3) (13) Skim 2120a gg6b g,7aab 1.64ab 2.15a 22.6ab 2.15a 333b g.7oa 134b (528) (165) (1.11) (0.10) (0.23) (1 .6) (0.16) (27) (4,g6) (10) 1Standard erro~ of me~n in parentheses. For each vitamin, values with different superscript letters in the same age group are significantly different at p<0.05. Source: USDAs Contmumg Survey of Food Intakes by Individuals (CSF/1), 1989-91, 3-day intake data. - estimate intakes of various nutrients was developed by the USDA for use in tills survey by using the USDA National Nutrient Data Base for Standard Reference and the USDA Nutrient DataBank (1992). Data were weighted to reflect the general population. Each gender was placed in one of five groups based on its milk consumption: no milk, whole milk, reduced-fat milk, skim milk, and mixed milk. Each group was also placed in a category based on age: 2 to 5 years (representing toddlers and preschoolers), 6 to 11 years (schoolchildren), 12 to 19 years (teenagers), 20 to 50 years (adults), 2002 Vol.14No.l 51 to 64 years (middle aged), and 65 years and older (elderly).lntak:es of food groups by people who drank whole, reduced-fat, and skim milk were previously reported (Lee et al., 1998). Statistical Analysis We calculated estimates of the mean and standard error of the means (SEMs) by using Survey Data Analysis (SUDAAN), a statistical program designed for complex, stratified sampling that is used to collect survey data (Shah, Barnwell, Hunt & La V ange, 1991). SUDAAN is recommended by USDA for statistical tests of signifi-cance on weighted data from its surveys (USDA, 1989). We also used Statistical Analysis Software (SAS) to analyze the data (SAS Institute, Inc., 1990). If the F test, by analysis of variance (ANOV A), showed a significant difference, Scheffe's t test (Scheffe, 1953) was used for pair-wise comparisons between groups at the 5-percent, two-tailed probability level. The resulting comparisons between the no-milk group or the mixed-milk group and the other milk groups showed inconsistent and insignificant differences. Therefore, this paper reports only the comparisons among three groups of milk drinkers: whole milk, reduced-fat milk, and skim milk. 15 Table 2. Mean intakes of vitamins by females, by age and milk type1 Age and Vitamin A Carotene Vitamin E Thiamin Riboflavin Niacin Vitamin B6 Folate Vitami n B12 Vitamin C milk type (RE) (RE) (alpha-TE) (mg) (mg) (mg) (mg) (t-<9) (t-<9) (mg) ?.2 years Whole 8188 3368 6.178 1.348 1.678 17.88 1.458 2228 4.268 838 (26) (16) (0.12) (0.02) (0.03) (0.2) (0.02) (4) (0.17) (2) Reduced-fat 983b 411b 6.77b 1.31• 1.69b 18.1b 1.5Qb 231b 4.288 86b (22) (15) (0.16) (0.02) (0.02) (0.2) (0.02) (4) (0.14) (2) Skim 1241C 67QC 8.11c 1.40b 1.6aab 19.6C 1.69c 27QC 4.108 1Q5C (71) (66) (0.49) (0.04) (0.04) (0.5) (0.05) (9) (0.17) (4) 20- 50 years Whole 8168 3438 6.sa• 1.328 1.598 18.58 1.438 2138 4.ss• so• (52) (26) (0.23) (0.03) (0.05) (0.4) (0.04) (7) (0.40) (3) Reduced-fat 946b 391b 7.11 8 1.31 8 1.68b 19.08 1.498 2288 4.41 8 82ab (32) (23) (0.26) (0.03) (0.03) (0.4) (0.03) (6) (0.26) (3) Skim 1152" 591c 8.30b 1.43b 1.70b 19.7b 1.93b 261b 4.168 gsb (20) (117) (0.57) (0.05) (0.06) (0.6) (0.13) (12) (0 .22) (6) 51 - 64 years Whole 8878 4258 5.468 1.268 1.468 17.28 1.388 2178 4.158 878 (71) (59) (0.27) (0.05) (0.05) (0.7) (0.06) (12) (0.42) (93) Reduced-fat 1092b 5348 6.96ab 1.31• 1.57ab 19.1b 1.59b 2458 4.298 938 (64) (41) (0.40) (0.04) (0.06) (0.6) (0.07) (10) (0.26) (5) Skim 1450C 780b 9.00b 1.478 1.80b 21.sc 1.93c 307b 4.91 8 128b (151) (127) (1.65) (0.12) (0.12) (1.2) (0.14) (28) (0.53) (12) ?.65 years Whole gsa• 5138 5.91 8 1.208 1.478 15.68 1.368 2178 3.628 848 (67) (60) (0.30) (0.04) (0.04) (0.4) (0.04) (8) (0.24) (5) Reduced-fat 1134b 531 8 7.ogab 1.2aab 1.6Qb 17.4b 1.56b 241b 4.708 1QQb (56) (30) (0.37) (0.03) (0.04) (0.5) (0.05) (7) (0.42) (4) Skim 1349b a sob 7.58b 1.30b 1.54ab 18.1b 1.63b 266b 3.3o• 111b (102) (93) (0.60) (0.05) (0.17) (0.7) (0.07) (14) (0.20) (7) 1Standard error of mean in parentheses. For each vitamin, values with diHerent superscript letters in the same age group are significantly different at p5_0.0S. Source: USDA's Continuing Survey of Food Intakes by Individuals (CSF/1), 1989-91, 3-day intake data. fat milks in the older age groups. A or skim milk, as well as between those Results detailed description and analysis of who drank reduced-fat milk versus the study population were reported skim milk. Analysis of possible gender Study Population previously (Lee et aL, 1998). differences showed that for both Fifty-six percent of the study popula- genders the significant difference in tion (n=l0,759) were females. Over the Intakes of Fat-Soluble Vitamins fat-soluble vitamins among the various 3-day period, about one-third of the For both the males and females (age 2 groups of milk drinkers occurred mostly population consumed whole milk (34 and older), intakes of vitamins A and E in the adult groups (ages 20 and older). percent) or reduced-fat milk (31 per- and carotene were highest among those cent); 7 percent, skim milk; 9 percent, who drank skim milk, followed by those Intakes of Water-Soluble Vitamins mixed types of milk; and 19 percent, no who drank reduced-fat milk, and then For both males and females, ages 2 milk. Generally, fewer people drank milk whole milk (tables 1 and 2). For males, and older, intakes of niacin, vitamin B6, as their age increased. Compared with the difference in intakes of these fat- folate, and vitamin C were significantly other age groups, the 20- to 50-year-old soluble vitamins and carotene was lower for those who drank whole milk group was more likely not to drink milk; significantly different between those than for those consuming reduced-fat toddlers and preschoolers were more who drank whole milk and those who and skim milk (tables 1 and 2). Intakes likely to drink whole milk. The con- drank reduced-fat milk or skim milk. For of these four nutrients by females as sumption of skim milk increased for females, the difference was statistically well as intakes of fo late and vitamin C older children, indicating a shift in significant between those who drank by males were significant! y lower for preference from whole milk to lower whole milk, compared with reduced-fat those drinking reduced-fat milk than for 16 Family Economics and Nutrition Review Table 3. Mean intakes of minerals by males and females age 2 and over, by milk type1 Gender and type of milk Calcium Phosphorus Magnesium Iron Zinc Copper Potassium Sodium consumed (mg) (mg) (mg) (mg) (mg) (mg) (mg) (mg) Males Whole 905a 1362'1 266a 15.38 12.58 1.1ga 26948 365(11 (21) (25) (5) (0.3) (0.3) (0.04) (46) (65) Reduced-fat 98~ 1415b 292> 16.? 13.2b 1.2? 2871' 361ga (16) (18) (4) (0.3) (0.4) (0.02) (42) (53) Skim 96rJl 1~ 310C 16.9b 12.gab 1.3?C 307ff 3646a (36) (44) (9) (0.7) (0.5) (0.05) (84) (176) Females Whole 71?8 1052'1 2118 1.88 9.18 0.92'1 216()3 26838 (13) (15) (3) (0.2) (0.1) (0.01) (27) (41) Reduced-fat 745ab 105ga 22rJl 12.6b 9.1 8 0.99b 223Jb 245Jb (11) (12) (3) (0.2) (0.1) (0.01) (26) (29) Skim 75fP 1105b 2~ 13.6c 9.8b 1.ogc 248~ 237fP (20) (21) (6) (0.5) (0.3) (0.03) (46) (59) 1Standard error of mean in parentheses. For each mineral, values with different superscript letters in the same gender group are significantly different at p~0 . 05 . Source: USDA's Continuing Survey of Food Intakes by Individuals (CSF/1), 1989-91, 3-day intake data. those drinking skim milk. Intakes of thiamin were also significantly lower for the males who drank whole milk, compared with males who drank reduced-fat or skim milk; the same was the case for females who drank whole milk or reduced-fat milk, compared with females who drank skim milk (tables 1 and 2). The analysis of the age groups revealed that the significant difference in intakes of water-soluble vitamins according to milk type occurred among adult age groups for both males and females (tables 1 and 2). Intakes of watersoluble vitamins (including thiamin, riboflavin, niacin, vitamin B6, folate, vitamin B 12, and vitamin C) were significantly lower for those who drank whole milk, compared with those who drank reduced-fat or skim milk. This finding was consistent for most adult male and female age groups (20 years and older), but not for younger age groups (data not shown). For male age groups, intakes of water-soluble vitamins between consumers of 2002 Vol.l4No.1 reduced-fat and skim milk were not significantly different. However, for certain female age groups, intakes of several vitamins, including niacin, folate, vitamin B6, and vitamin C, were significantly greater for consumers of skim milk, compared with reduced-fat milk. Intakes of Minerals For both genders, ages 2 and older, consumers of whole milk, compared with consumers of reduced-fat milk or skim milk, had significantly lower intakes of all the minerals analyzed, except for sodium for males and zinc for females (table 3). Sodium intake was not significantly different based on the types of milk consumed by males but was significantly reduced for females who drank lower fat milk. In the same age category (ages 2 and older), intakes of the minerals magnesium, copper, and potassium were significantly lower for males who drank reduced-fat milk, compared with males who drank skim milk (table 3). However, among females, intakes of all the dietary essential minerals studied, except for sodium, were significantly lower among those consuming whole milk, compared with those drinking skim milk. These significant increases in intakes of minerals by those drinking skim milk, compared with those drinking higher fat milk, occurred mostly in the adult age groups (ages 20 and older) of females (table 3). Intakes of Dietary Fiber Those ages 2 and older who drank whole milk had significantly lower intakes of dietary fiber than their counterparts who drank reduced-fat or skim milk (table4). This significantly lower intake in dietary fiber by individuals of both sexes who drank whole milk occurred in two adult age groups (adult and elderly) but not in younger age groups. For several age groups, including elderly males as well as adult and elderly females, those who drank reduced-fat milk had significantly lower intakes of dietary fiber, compared with those who drank skim milk. 17 ... people who drank reduced-fat or skim milk had significantly greater mean intakes of fat-soluble vitamins and carotene, water-soluble vitamins, minerals (except sodium), and dietary fiber, compared with people who drank whole milk. 18 Table 4. Mean intake of dietary fiber (in grams) by males and females, by age and type of milk consumed1 Age and milk type Male Female ?.2 yrs Whole 14.2'1 11 .3a (0.3) (0.2) Reduced-fat 15.7b 12.1b (0.3) (0.2) Skim 18.0C 14.5c (0.7) (0.4) 2-S yrs Whole 8.0 8.3 (0.3) (0.3) Reduced-fat 10.0 9.2 (0.5) (0.4) Skim 9.8 9.9 (1.1) (0.7) 20-SOyrs Whole 15.4 11.3a (0.5) (0.3) Reduced-fat 17.1 12.ob (0.5) (0.3) Skim 19.2 14.1C (1.2) (0.6) ?.65 yrs Whole 14.9a 11 .3a (0.7) (0.4) Reduced-fat 17.9b 13.2b (0.6) (0.4) Skim 20.3C 14.9C (1.5) (0.6) 1Standard error of mean in parentheses. Values with different superscript letters in the same gender-age groups are significantly different at p~0.05. Source: USDA's Continuing Survey of Food Intakes by Individuals (CSF/1), 1989-91, 3-day intake data. Percentage of the 1989 Recommended Dietary Allowances Met For males and females, intakes of vitamins by those ages 2 and older met or exceeded the 1989 RD As (National Academy of Sciences, 1989). The exceptions were vitamin E for both men and women, and vitamin B6 for women only (table 5). For vitamins in general, people who drank reduced-fat and skim milk met a greater percentage of the RDAs than did people who drank whole milk, exceeding 100 percent of the RDAs. Compared with others, those drinking skim milk alsometatleast 100 percent of the RDAs for vitantins E and B6, reflecting higher intakes of these nutrients. Interestingly, those who drank whole milk met a greater percentage ofRDA for vitamin B 12 , compared with those who drank lower fat milk. Males 2 years and older met or exceeded the RDAs for some of the minerals studied: calcium, phosphorus, and iron. They generally met the RDA for magnesium but failed to meet 100 percent of the RDA for zinc (table 6). Females 2 years and older exceeded the RDA for phosphorus only-thus failing to meet 100 percent of the RDAs for zinc, calcium, or magnesium for all three milk categories. Iron intake was below 100 percent of the RDA for women drinking whole milk but exceeded the RDA for those drinking reduced-fat and skim milk. In general, when people drank reduced-fat and skim milk, they met a significantly higher percentage of the RDAs for calcium, phosphorous, and iron than did people who drank whole milk. Discussion Our results indicate that the choice of milk people consumed significantly affects their intakes of essential micronutrients. In general, compared with people who drank whole milk, those who drank reduced-fat and skim milk had significantly higher intakes offat-soluble vitamins (A, E, and carotene3), water-soluble vitamins (thiamin, riboflavin, niacin, vitantin B6, folate, vitamin B 12, and vitamin C), minerals (calcium, phosphorus, 3Carotene is the precursor to vitamjn A. Although not technically a vitamin, it is often measured as a predictor of vitamin A availability or activity. Family Economics and Nutrition Review Table 5. Vitamin intake as a percentage of Recommended Dietary Allowances by males and females age 2 and over, by type of milk consumed1 Gender and milk type Vitamin A Vitamin E Thiamin Riboflavin Niacin Vitamin B6 Folate Vitamin B12 Vitamin C Male Whole 113'3 84a 135a 145a 14oa 103a 17ga 345a 165a (3) (2) (2) (2) (2) (1) (3} (11) (3} Reduced-fat 13gb 1Q3b 103a 155b 148b 111b 1W 33~ 18? (3) (3} (2) (2) (2) (1} (3} (8) (4) Skim 143b 1Q2b 13~ 144ab 148b 1oot> 178a 323'3 21SC (8} (5) (3} (4) (3} (3) (5) (34) (7) Female Whole 11~ soa 1soa 13~ 1~ gga 164a 255a 15~ (3) (1} (1} (2} (1) (1) (3) (7) (3) Reduced-fat 1~ 86b 125b 136a 12ga gsa 15oa 236b 15oa (2) (1) (1} (1) (1) (1) (2) (5) (2} Skim 155c 100C 133'! 134a 13gb 1Q6b 154a 2ogb 176b (6) (4) (3} (2) (2} (2} (4) (6} (5) 1 Standard error of mean in parentheses. For each micronutrient, values with different superscript letters in the same gender are significantly different at ps0.05. Source: USDA's Continuing Survey of Food Intakes by Individuals (CSF/1), 1989-91, 3-day intake data. magnesium, iron, zinc, copper, and potassium), and dietary fiber. People consuming skim milk had the most favorable profiles regarding the intakes of micronutrients. These findings are consistent with previous reports. Peterson eta!. (1999) evaluated fatreduction strategies and subsequent micronutrient intakes and reported that, compared with users of higher fat milk, men and women who used skim milk exclusively had improved intakes of vitamin A, vitamin B6, and magnesium. Only females who used skim milk exclusively had improved intakes of vitamin E, iron, calcium, and zinc. Another study (Wirfalt & Jeffery, 1997) showed that users of skim milk, rather than nonusers, had higher intakes of dietary fiber, calcium, vitamin C, iron, and vitamin A. In our study, the differences in micronutrient intakes among those consuming different types of milk were more obvious among females than among males. The analysis based on people's age revealed that the statistical significance in intakes of micronutrients among those drinking 2002 Vol. 14 No.1 different types of milk occurred among adults ages 20 and older. Studying the same population as used here, Lee eta!. (1998) reported that those who drank reduced-fat milk consumed more fruits, vegetables, and seasoning fats and oils. The observed favorable intake of micronutrients and dietary fiber by people who drank reduced-fat milk is likely linked to the larger amounts of total vegetables and fruits consumed by those who drank reduced-fat and skim milk, compared with their counterparts who drank whole milk (table 1). This increased consumption of vegetables and fruits by people who drank lower fat milk may have contributed to the significantly higher intakes of vitamins C, folate, magnesium, iron, potassium, copper, and dietary fiber in the diets of those who drank reduced-fat and skim milk. Also, the higher intakes of vitamin Erich seasoning fats and the use of margarine and reduced-fat and skim milk (fortified with vitamin A) may have contributed to the improved intakes of vitamins E and A. The results of the present study and previously reported studies (Peterson etal., 1999; Wirfalt& Jeffery, 1997) suggest that the use of skim milk could be a simple indicator of a healthful diet. Basically, Americans who drink skim milk appear to be making additional conscious food choices that reflect a concern for fat intake and an interest in a varied and balanced diet. The improved micronutrient profile, significantly lower intakes of red meat, and significantly higher intakes of vegetables and fruit by those who drank skim milk indicate two things: ( 1) a tendency to select more healthful food items and (2) a likelihood of having food intake patterns closer to dietary guidance (Gorbach et al., 1990; Peterson eta!., 1999;Subaretal., 1994). Dietary intake status for zinc has been considered a potential health issue in the United States (Federation of American Societies for Experimental Biology, 1995). For each type of milk drinker, 2 years old and older, intake of dietary zinc was at 77 to 93 percent of the RDA (table 6). Data from the 19 People consuming skim milk had the most favorable profiles regarding the intakes of micronutrients. 20 Table 6. Mineral intake as a percentage of Recommended Dietary Allowances by males and females age 2 and over, by type of milk consumed1 Gender and milk type Calcium Phosphorus Magnesium Iron Zinc Male Whole 1()3'1 155a gga 14ga goa (2) (2) (1) (2) (2) Reduced-fat 11~ 1EJSb 104b 163b 9~ (1) (2) (1) (2) (2) Skim 115b 171b 96a 168b aaab (3) (3) (2) (5) (2) Female Whole aoa 118'1 96a 94a 78a (1) {1) (2) (1) {1) Reduced-fat 86b 123b 94a 101b na (1) (1) (1) (1} (1) Skim agb 130C gsa 111c 81 (2) (2) (2) (3) (2) 1Standard error of mean in parentheses. For each micronutrient, values with different superscript letters in the same gender are significantly different at ps_0.05. Source: USDA's Continuing Survey of Food Intakes by Individuals (CSF/1), 1989-91, 3-day intake data. USDA's CSFII 1989-91 indicate that women and men consumed only 75 and 89 percent, respectively, of the RDA for zinc. The population needs to be encouraged to choose foods high in bioavailability and content of zinc. These foods include red meats (beef, pork, and veal), poultry, oysters, and dairy products. Fish, cereal, whole grain products, legumes, and beans have less zinc content. Also, the presence of phytates in whole grains negatively affects its bioavailability (Bosscher et al.,2001). Vitamin E intake was lower for people who consumed whole milk, compared with those who consumed reduced-fat or skim milk. As previously reported, those who drank reduced-fat and skim milk consumed significantly higher amounts of seasoning fats and oils, which we believe are linked to the higher intakes of vitamin E, as found in this study (Lee et al., 1998). Nevertheless, males and females who drank whole milk as well as females who drank reduced-fat milk met only 80 to 86 percent of the RDA for vitamin E-a finding that indicates that vitamin E needs to be targeted in U.S. nutrition education efforts. Foods rich in vitamin E are vegetable oils, dark-green leafy vegetables, nuts, whole grain cereals, fortified cereals, and eggs. Calcium intake is considered a current public health concern. Recent findings indicate that food selection practices in the United States make it difficult to meet calcium needs without having milk and milk products in the daily diet (Gerrior et al., 1998). The present study shows that calcium intake needs to improve among all people, regardless of the type of milk consumed. Consuming adequate amounts of lower fat milk and dairy products-such as skim milk or nonfat yogurt-that are as high or higher in calcium as whole milk (Gerrior et al., 1998) could be a good means for improving the intake of dietary calcium. These findings indicate that a lower fat diet does not necessarily ensure a nutritionally optimal diet. These findings also emphasize the importance Family Economics and Nutrition Review of a balanced diet-one that follows the guidance of the Dietary Guidelines for Americans and the Food Guide Pyramid. Additional studies, with more recent data, that include a focus on greater variety of fat-modified food products are needed to better understand how Americans incorporate reduced-fat foods into their diets and how these food choices affect nutritional status. This understanding is necessary to target more effective nutrition education efforts that improve diet quality and the overall health of Americans. Limitations Survey Data The data used in this study, as with any survey data, should be interpreted with appropriate care. Dietary surveys are subject to nonresponse errors, respondent errors (such as underreporting), coding and processing errors, and limitation of nutrient data. For example, the individuals included in the 1989-91 CSFll sample may not be representative ofthe general U.S. population. Also, compared with other days, fewer CSFll interviews were conducted on Sunday. Thus, percentages of acceptable dietary forms collected were lower for Saturday (day-1 recall), Sunday (day-2 record), and Monday (day-3 record). Weighting survey results can reduce the potential for nonresponse bias. We weighted the results of this study, and we included the interview data as a control variable. The nutrient database developed for the CSFII and used for our study reflected up-to-date nutrient information at the time the CSFll was conducted. Also, most of its nutrient values included in the database are supported by laboratory analyses, but analytical data are not always available. Hence, values are sometimes imputed. 2002 Vol. 14 No. 1 RDA versus DRI Adopted by the Food and Nutrition Board of the Institute of Medicine, Dietary Reference In takes (D Rls) represent the new approach to providing quantitative estimates of nutrient intakes for use in a variety of settings. Hence, the DRis replace and expand on the past 50 years of periodic updates and revisions of the RDAs. The DRis differ in amounts and age categories from the 1989 RDAs. Along with the RDA category, the DRis include three new categories of reference values: Adequate Intake (AI), the Estimated Average Requirement (EAR), and the Tolerable Upper Level (UL) (Yates, Schlicker&Suitor, 1998). This study does not use the DRis in the calculation of nutrient intakes and nutrient analysis. Until expert guidance is published by the Food and Nutrition Board regarding the use of the appropriate DRI category for assessing the diets of individuals in large-scale dietary surveys, USDA continues to use the 1989 RDAs to analyze nutrients. While the DRis are published for the bone-related nutrients (calcium, phosphorus, magnesium, vitamin D, and fluoride) and are available for the B vitamins (folate, pantothenic acid, biotin, and choline), DRis for other nutrients have not been released. Thus for consistency in reporting of micronutrient intakes and evaluating nutrient status, we used the 1989 RDAs. Acknowledgment We appreciate Drs. Jacqueline Dupont (Florida State University) and P. Peter Basi otis (Center for Nutrition Policy and Promotion, USDA) for their help in installment of this research. We also thank Ms. Julie Smith (Agricultural Marketing Service, USDA) for her substantial assistance in analyzing the data. 21 22 References Anand, R., & Basi otis, P.P. (1998). Is total fat consumption really decreasing? Family Economics and Nutrition Review 11(3):58-64. Bosscher, D., Lu, Z., Janssens, G., Van Caillie-Bertrand, M., Robberecht, H., De Rycke, H., et al. (2001). In vitro availability of zinc from infant foods with increasing phytic acid contents. British Journal of Nutrition 86(2):241-247. Butrum, R.R., Clifford, C.K., &Lanza, E. ( 1988). National Cancer Institute dietary guidelines: Rationale. American Journal of Clinical Nutrition 48(suppl):888-895. Buzzard, I.M., Asp, E.H., Chlebowski, R.T., Boyar, A.P., Jeffery, R.W. , Nixon, D.W., et al. ( 1990). Diet intervention methods to reduce fat intake: Nutrient and food group composition of self-selected low-fat diets. Journal of the American Die£dic Association 90:42-50,53. Federation of American Societies for Experimental Biology, Life Sciences Research Offices. (1995). Third Report on Nutrition Monitoring in the United States. Vol. 1. Washington, DC: U.S. Government Printing Office. Gerrior S., & Bente L. (1997). Nutrient Content of the U.S. Food Supply, 1909-94. Home Economics Research Report No. 53. U.S. Department of Agriculture, Center for Nutrition Policy and Promotion. Gerrior, S .A., Putnam, J ., & Bente, L. ( 1998). Milk and milk products: Their influence in the American diet. FoodReview 21(2):29-37. Gorbach, S.L., Morrill-LaBrode, A., Woods,M.N., Dwyer,J.T., Selles, W.D., Henderson, M., et al. (1990). Changes in food patterns during a low-fat dietary intervention in women. Journal of the American Dietetic Association 90:802-809. Krauss, R.M., Deckelbaum, R.J., Ernst, N., Fisher, E. , Howard, B.V., Knopp, R.H., et al. (1996). Dietary Guidelines for Healthy American Adults. American Heart Association. A vail able at: http://www .americanheart.org/Scientific/statements/ 1996/1001/htrn. AccessedAprill3, 1999. Lee, H. H-C., Gerrior, S.A., & Smith, J.A. (1998). Energy, macronutrients, and food intakes in relation to energy compensation in consumers who drink different types of milk. American Journal of Clinical Nutrition 67:616-623. Morton, J., & Guthrie, J. (1998). Changes in children's total fat intakes and their food group sources of fat, 1989-91 versus 1994-95: Implications for diet quality. Family Economics and Nutrition Review 11(3):44-57. National Academy of Sciences, National Research Council, Food and Nutrition Board. (1989). Recommended Dietary Allowances (lQ'h ed.). Washington, DC: National Academy Press. Family Economics and Nutrition Review National Heart, Lung, and Blood Institute, National Institutes of Health. (1993). Expert Panel on Detection, Evaluation and Treatment of High Blood Cholesterol in Adults. (Adult Treatment Panel Il), Second Report. NIH Publication No. 93- 3095. Bethesda, MD. National Research Council. (1989). Diet and Health Implications for Reducing Chronic Disease Risk. Washington, DC: National Academy Press. Peterson, S., Sigman-Grant, M., Eissenstat, B., & Kris-Etherton, P. (1999). Impact of adopting lower-fat food choices on energy and nutrient intakes of American adults. Journal of the American Dietetic Association 99:177-183. SAS Institute, Inc. (1990). SAS Procedures Guide. Version 6. 3'd ed. Cary, NC: SAS Institute, Inc. Scheffe, H. (1953). A method for judging all contrasts in the analysis of variance. Biometrika40:87-104. Shah, B.V., Barnwell, B.G.,Hunt, P.N., &LaVange,L.M. (1991). SUDAAN User's Manual. Release 5.50. Research Triangle Park, NC: Research Triangle Institute. Subar,A.F.,Ziegler,R.G., Patterson,B.H., Ursin,G.,&Graubard,B. (1994). U.S. dietary patterns associated with fat intake: The 1987 National Health Interview Survey. American Journal of Public Health 84:359-366. Tippett, K.S., Mickle, S.J., Goldman, J.D., Sykes, K.E., Cook, D.A., Sebastian, R.S., et al. (1995). Food and Nutrient Intake by Individuals in the United States, 1 day, 1989-91. Continuing Survey of Food Intakes by Individuals, 1989-91 . Nationwide Food Surveys Rep. No. 91 -2. U.S. Department of Agriculture, Agricultural Research Service. U.S. Department of Agriculture, Agricultural Research Service. (1997). Data tables: Results from USDA 's 1994-96 Continuing Survey of Food Intakes by Individuals and 1994-96 Diet and Health Knowledge Survey. [On-line]. Available: http:// www.barc.iusda.gov/bhnrc/foodsurvey!home.htm. Accessed April6, 1999. U.S. Department of Agriculture, Human Nutrition Information Service. (1984 ). Nutrient Intake of Individuals in 48 States, Year I977-78. Nationwide Food Consumption Survey, 1977-78, ReportNo.1-2. U.S. Department of Agriculture, Human Nutrition Information Service. (1986). Continuing Survey of Food Intakes by Individuals. Nationwide Food Consumption Survey Report No. 85-3. U.S. Department of Agriculture, HumanN utrition Information Service. (1987). Continuing Survey of Food Intakes by Individuals. Nationwide Food Consumption Survey Report No. 86-1 . U.S. Department of Agriculture, Human Nutrition Information Service. (1989). Guidelines for the Use of Weights When Analyzing and Reporting HNIS Survey Data. Hyattsville, MD. 2002 Vol. 14No. 1 23 U.S. Department of Agriculture, Human Nutrition Information Service. (1992). The Food Guide Pyramid. Home and Garden Bulletin No. 252. U.S. Department of Agriculture, Human Nutrition Information Service. (1992). U.S. Department of Agriculture Nutrient Data Base for Individual Surveys. Release 7. Computer tape, Accession No. PB94-504552GEL. Springfield, VA: U.S. Department of Commerce. U.S. Department of Agriculture, & U.S. Department of Health and Human Services. (1995). Nutrition and Your Health: Dietary Guidelines for Americans (4th ed.). Home and Garden Bulletin No. 232. U.S. Department of Agriculture. U.S. Department of Health and Human Services. ( 1988). The Surgeon General's Report on Nutrition and Health. DHHS (PHS) Pub]jcation 88-50210. Washington, DC. Wirfalt, A.K.E., & Jeffery, R.W. (1997). Using cluster analysis to examine dietary patterns: Nutrient intakes, gender, and weight status differ across food pattern clusters. Journal of the American Dietetic Association 97:272-279. Yates, A.L., Schlicker, S.A., & Suitor, C.W. (1998). Dietary Reference Intakes: The new basis for recommendations for calcium and related nutrients, B vitamins, and cho]jne. Journal of the American Dietetic Association 98(6):699-706. 24 Family Economics and Nutrition Review Mark Lino, PhD U.S. Department of Agriculture Center for Nutrition Policy and Promotion 2002 Vol.l4No. 1 Expenditures on Children by Families, 2000 Since 1960 the U.S. Department of Agriculture has provided estimates of expenditures on children from birth through age 17. This article presented the most recent estimates for husband-wife and single-parent families. Data were from the 1990-92 Consumer Expenditure Survey. The Consumer Price Index was used to update income and expenditures to 2000 dollars. Data and methods used in calculating child-rearing expenses were described and estimates were provided for major components of the budget by age of the child, family income, and region of residence. Expenses on the younger child in a two-child, husbandwife household for the overall United States averaged $6,280 to $14,260 in 2000, depending on the child's age and family income group. Adjustment factors for number of children in the household were also provided. Results of this study can be used in developing State child support guidelines and foster care payments and in developing family educational programs. Since 1960the U.S. Department of Agriculture (USDA) has provided estimates of expenditures on children from birth through age 17. These estimates are used in setting child support guidelines and foster care payments and in developing educational programs on parenthood. This study presents the latest childrearing expense estimates, which are based on 1990-92 expenditure data that have been updated to 2000 dollars. The study presents these new estimates for husband-wife and single-parent families. It briefly describes the data and methods used in calculating childrearing expenses 1 and then discusses the estimated expenses. IThe Expenditures on Children by Families: 2000 Annual Report provides a more detailed description of the data and methods. To obtain a copy, contact USDA, Center for Nutrition Policy and Promotion, 3101 Park Center Drive, Room I 034, Alexandria, VA 22302 (telephone: 703-305-7600). The estimates are provided for the overall United States. The child-rearing expense estimates for husband-wife families are also provided for urban areas in four regions (Northeast, South, Midwest, and West) and rural areas throughout the United States2 to adjust partially for price differentials and varying patterns of expenditures. For single-parent families, estimates are provided for the overall United States only because of limitations in the sample size. Expenditures on children are estimated for the major budgetary components: housing, food, transportation, clothing, health care, child care and education, and miscellaneous goods and services. The box on p. 26 describes each expenditure component. 2Urban areas are defined as Metropolitan Statistical Areas (MSA's) and other places of 2,500 or more people outside an MSA; rural areas are places of less than 2,500 people outside an MSA. 25 Categories of Household Expenditures Housing expenses consists of shelter (mortgage interest, property taxes, or rent; maintenance and repairs; and insurance), utilities (gas, electticity, fuel, telephone, and water), and house furnishings and equipment (furniture, floor coverings, major appliances, and small appliances). For homeowners, housing expenses do not include mortgage principal payments; in the Consumer Expenditw·e Survey, such payments are considered to be part of savings. So, total dollars allocated to housing by homeowners are underestimated in this report. Food expenses consists of food and nonalcoholic beverages purchased at grocery, convenience, and specialty stores, including purchases with food stamps; dining at restaurants; and household expenditures on school meals. Transportation expenses consists of the net outlay on the purchase of new and used vehicles, vehicle finance charges, gasoline and motor oil, maintenance and repairs, insurance, and public transportation. Clothing expenses consists of children's apparel such as diapers, shirts, pants, dresses, and suits; footwear; and clothing services such as dry cleaning, alterations and repair, and storage. Health care expenses consists of medical and dental services not covered by insurance, prescription drugs and medical supplies not covered by insurance, and health insurance premiums not paid by the employer or other organization. Child care and education expenses consists of day care tuition and supplies; baby-sitting; and elementary and high school tuition, books, and supplies. Miscellaneous expenses consists of personal care items, entertainment, and reading materials. Data The 1990-92 Consumer Expenditure Survey (CE) is used to estimate expenditures on children. Administered by the Bureau of Labor Statistics (BLS), the CE collects information on sociodemographic characteristics, income, and expenditures of households. The CE, conducted annually since 1980, interviews about 5,000 households each quarter over a 1-year period. Each quarter is deemed an independent sample by BLS; thus, the total number of households in the 1990-92 survey is about 60,000. Husband-wife and single-parent families were selected from these households for this study if (1) they had at least one child of their own-age 17 or under-in the household, (2) they had six or fewer children, (3) they had no other related or unrelated people 26 present in the household except their own children, and ( 4) they were complete income reporters.3 Quarterly expenditures were annualized. The sample consisted of 12,850 husband-wife households and 3,395 single-parent households. BLS weighting methods were used to weight the sample to reflect the U.S. population of interest. Although based on 1990-92 data, the expense estimates were updated to 2000 dollars by using the Consumer Price Index (CPI-U). (Expenditure and income data for 1990 and 1991 were first converted to 1992 dollars; then, all 3 years of data were updated to 2000 dollars.) 3Complete income reporters are households that provide values for major sources of income, such as wages and salaries, selfemployment income, and Social Security income. Methods The CE collects overall household expenditure data for some budgetary components (housing, food, transportation, health care, and miscellaneous goods and services) and child-specific expenditure data for other components (clothing, child care, and education). Multivariate analysis was used to estimate household and child-specific expenditures. Income level, family size, and age of the younger child were controlled so that estimates could be made for families with these varying characteristics. Regional estimates were derived by controlling for region. The three income groups of husband-wife households were determined by dividing the sample for the overall United States into equal thirds: beforetax income under $31,000, between $31,000and $52,160, andover$52,160 in 1992dollars. Family Economics and Nutrition Review For each income level, the estimates were for husband-wife families with two children. The younger child was in one of six age categories: 0-2, 3-5, 6-8, 9-11, 12-14, and 15-17. Households with four members (two children) were selected as the standard because in 1990-92 this was the average household size of twoparent families. The focus was on the younger child in a household because the older child was sometimes over age 17. The estimates are based on CE Interviews of households with and without specific expenses; so for some families, expenditures may be higher or lower than the mean estimates, depending on whether they incur the expense. This applies particularly to child care and education for which about 50 percent of families in the study had no expenditure. Also, the estimates cover out-ofpocket expenditures on children made by the parents only and not by others, such as grandparents or friends. For example, the value of clothing gifts to children from grandparents would not be included in clothing expenses. Regional income categories were based on the national income categories in 1992 dollars that were updated to 2000 dollars by using regional CPI' s. The regional income categories were not divided into equal thirds for each region as was done for the overall United States. After the various overall household and child-specific expenditures were estimated, these total amounts were allocated among the four family members (husband, wife, older child, and younger child). The estimated expenditures for clothing and child care and education were for children only. It was assumed that these expenses were allocated equally to each child; therefore, the estimated 2002 Vol.l4No.l expenditures were divided by two (the number of children in the household). Because the CE did not collect expenditures on food and health care by family member, data from other Federal studies were used to apportion these budgetary components to chiklr~!1 by age. Shares of the food budget as a percentage of total food expenditures-for the younger child in a husband-wife household with two children-were determined by using the 1994 USDA food plans (U.S. IieJ:.-~:-'111ent of Agriculture, 1994 ). These shares were estimated by age of the child and household income level. The food budget shares were then applied to estimated household food expenditures to determine food expenses on children. Shares of the health care budget as a percentage of total health care expenses for the younger child in a husband-wife household with two children were calculated from the 1987 National Medical Expenditure Survey (Lefkowitz & Monheit, 1991). These shares were estimated by age of the child and applied to estimated household health care expenditures to determine expenses on children. No research base exists for allocating estimated household expenditures on housing, transportation, and miscellaneous goods and services among household members. The marginal cost method and the per capita method are two of the most common approaches for allocating these expenses. The marginal cost method measures expenditures on children as the difference in expenses between couples with children and equivalent childless couples. This method depends on development of an equivalency measure; however, there is no universally accepted measure. Proposed methods have produced different estimates of expenditures on children.4 Some of the marginal cost approaches assume that parents or couples do not alter expenditures on themselves after a child is added to a household. Also, couples without children often buy larger-than-needed homes at the time of purchase in anticipation of children. Comparing the expenditures of childless couples with expenditures of similar couples that have children could lead to underestimated expenditures on children. Lastly, the marginal cost method does not provide a direct estimate of how much is spent on a child. It estimates how much money families with children must be compensated to bring the parents to the same utility level (as gauged by an equivalence scale) of couples without children. This is a different question from "how much do parents spend on children?" For these reasons, the USDA uses the per capita method to allocate housing, transportation, and miscellaneous goods and services among household members. The per capita method allocates expenses among household members in equal proportions. Although the per capita method has limitations, these limitations were considered less severe than those of the marginal cost approach. A major limitation of the per capita method is that expenditures for an additional child may be less than average expenditures. Consequently, for households of different sizes, 4For a review of equivalency measures and estimates of expenditures on children resulting from them, see U.S. Department of Health and Human Services, Office of the Assistant Secretary for Planning and Evaluation, 1990, Estimates of Expenditures on. Children and Child Support Guidelines (U.S. Department of Health and Human Service , 1990). 27 adjustment formulas were devised to estimate expenditures on one child or three or more children. These formulas are discussed later in the paper. Transportation expenses resulting from employment activities are not related to expenses on children, so these costs were excluded from the estimated household transportation expenses. Data used to estimate workrelated transportation expenses were from a 1990 study by the U.S. Department of Transportation ( 1994 ). Although the USDA uses the per capita approach rather than a marginal cost approach in allocating housing, transportation, and miscellaneous expenditures to chi ldren in a household, a USDA study examined how these expenses would be allocated using different marginal cost approaches (Lino & Johnson, 1995). These marginal cost approaches produced estimates of expenditures on children for housing and miscellaneous goods and services below those produced by the per capita method. In addition, these approaches produced estimates of transportation expenditures on children above those produced by the per capita method. Estimated Expenditures on Children by Husband-Wife Households Estimates of family expenditures on the younger child in husband-wife households with two children are presented in tables 2 through 7 on pp. 36-41. The estimates are for the overall United States, urban regions, and overall rural areas. Household income levels were updated to 2000 dollars by using the all-items category of the CPI-U, and expenditures were updated by using the CPI for the corresponding item (i.e., the CPI's for housing, food, etc.). Regional estimates were updated to 28 Figure 1. Estimated 2000 annual family expenditures on a child, by before-tax income level and age of child1 16,000 14,000 12,000 10,000 ~ !Jl 0 8,000 0 6,000 4,000 2,000 0 0-2 3-5 6-8 9-11 12-14 15-17 Age of child Less than $38,000 • $38,000 - $64,000 • More than $64,000 1U.S. average for the younger child in husband-wife families with children. 2000 dollars by using the regional CPI's. The following subsections highlight the child-rearing expense estimates for the younger child in a two-child household for the overall United States by income level, budgetary component, and age of the child. Child-rearing expenses by region are also discussed. Income Level Estimated expenses on children vary considerably by household income level (fig. 1). Depending on age of the child, the annual expenses range from $6,280 to $7,380 for families in the lowest income group (2000 before-tax income less than $38,000), from $8,740 to $9,860 for families in the middleincome group (2000 before-tax income between $38,000 and $64,000), and from $13,000to $14,260 for families in the highest income group (2000 before-tax income more than $64,000). On average, households in the lowest group spend 28 percent of their before-tax income per year on a chi ld; those in the middleincome group, 18 percent; and those in the highest income group, 14 percent. The range in these percentages would be narrower if after -tax income were considered, because a greater percentage of income in higher income households goes toward taxes. Although families in the highest income group spend, on average, slightly less than twice the amount on a child than that spent by families in the lowest income group, the amount varies by budgetary component. In general, expenses on a child for goods and services considered to be necessities (e.g., food and clothing) do not vary as much as those considered to be discretionary (e.g., miscellaneous expenses) among households in the three income groups. For example, clothing expenses on a child age 15-17 average $670 in the lowest income group and $1,020 in the highest income group, a 52-percent difference. Miscellaneous expenses on a child of the same age average $640 in the lowest income group and $1,630 in the highest income group, a !55-percent difference. Family Economics and Nutrition Review Budgetary Component Housing accounts for the largest share of total child-rearing expenses. The box on p. 30 shows this for families in the middle-income group. Based on an average for the six age groups, housing accounts for 33 to 36 percent of childrearing expenses for a child; the percentage rises with income. Food is the second largest average expense on a child for families regardless of income level. It accounts for 20 percent of child-rearing expenses for a child in the lowest income group, 18 perce11t in the middle-income group, and 15 percent in the highest income group. Transportation, the third largest child-rearing expense, makes up 14 to 15 percent of child-rearing expenses across income levels. Across the three income groups, miscellaneous goods and services (personal care items, entertainment, and reading materials) is the fourth largest expense on a child for families (10 to 12 percent). For families, clothing (excluding that received as gifts or hand-me-downs) accounts for 6 to 8 percent of expenses on a child, child care and education accounts for 8 to 11 percent, and health care accounts for 6 to 7 percent of child-rearing expenses across income groups. Estimated expenditures for health care include only out-of-pocket expenses (including insmance premiums not paid by an employer or other organization) and not that portion covered by health insmance. Age of Child Expenditures on a child are lower in the younger age categories and higher in the older age categories. Figure 2 depicts this for families in the middleincome group. This held across income groups and held even though housing expenses, the highest child-rearing expenditure, generally decline as the 2002 Vol. 14 No. 1 child ages. The decline in housing expenses reflects diminishing interest paid by homeowners over the life of a mortgage. Payments on principal are not considered part of housing costs in the CE; they are deemed to be part of savings. For all three income groups, food, transportation, clothing, and health care expenses related to child-rearing generally increase as the child ages. Transportation expenses are highest for a child age 15-1 7. when he or she would start driving. Child care and education expenses are highest for a child under age 6. Most of this expense may be attributable to child care at this age. The estimated expense for child care and education may seem low for those with the expense. The estimates reflect the average of households with and without the expense. Region Child-rearing expenses in the regions reflect patterns observed in the overall United States: in each region, expenses on a child increase with household income level and, generally, with age of the child (fig. 3). Overall child-rearing expenses are highest in the urban West, followed by the urban Northeast, and urban South. Child-rearing expenses are lowest in the urban Midwest and rural areas. Much of the difference in expenses on a child among regions is related to housing costs. Total housing expenses on a child are highest in the urban West and urban Northeast and lowest in rmal areas. However, childrearing transportation expenses are highest for families in rural areas. This likely reflects the longer traveling distances and the lack of public transportation in these areas. Food is the second largest average expense on a child for families regardless of income level. 29 Expenditures on Children Over Time Since 1960 the U.S. Department of Agriculture has provided estimates of expenditures on children from birth through age 17. The original estimates were based on the 1960 Consumer Expenditure Survey. The figure that follows shows how these expenditure estimates have changed from 1960 to 2000. Depicted are the average total expenditures on a child from birth through age 17 in a middle-income, husband-wife family. Total expenses are in 2000 dollars (1960 expenses are adjusted for inflation). Expenses to raise a child through age 17 have increased in real terms, from$146,780 in 1960 to $165,630 in 2000. New components of child-rearing costs, particularly child care, are among factors causing this increase. In 1960 child care expenses were negligible, because many mothers were not in the labor force. In 2000 child care expenses were among the largest expenditures made on preschool children by middle-income fanlilies. Expenditures on a child through age 17 by middle-income, husband-wife families 1960 Health care Clothing Child care and education 1% 2000 Transportation Child care and education Total expenses= $146,780 (in 2000 dollars) Total expenses= $165,630 Adjustments for Older Children and Household Size The expense estimates on a child represent expenditures on the younger child at various ages in a husband-wife household with two children. It cannot be assumed that expenses on the older child are the same at these various ages. Expenses may vary by birth order. The method described on pp. 26-28 was repeated to determine whether 30 a difference exists, the extent of this difference, and bow the expenditures may be adjusted to estimate expenses on an older child. The focus was on the older child in each of the same age categories as those used with the younger child. A two-child fami ly was again used as the standard. Household income and U.S. region of residence were not held constant, so findings are applicable to all families. On average, for husband-wife bouseholds with two children, expenditures do not vary by birth order. So, the expenditures in tables 2 through 7 reflect those on either child in a twochild family. Thus, annual expenditures on children in a husband-wife, twochild fami ly may be estimated by summing the expenses for the two appropriate age categories. For example, annual expenditures on children ages 9-11 and 15-17 in a husband-wifefamily in the middle-income group for the overall United States would be $18,810 ($8,950 + $9,860). For specific budgetary components, annual expenses on an older child vary, compared with those on a younger child: families spend more Family Economics and Nutrition Review Figure 2. Estimated 2000 annual family expenditures on a child,1 by age and budgetary share 100 80 c Q) 2 Q) [l_ 40 20 0 0-2 3-5 6-8 9-11 12-14 15-17 Age of child Miscellaneous Child care and education Clothing Health care Transportation Food Housing 1U.S. average for the younger child in middle-income, husband-wife families with two children. Figure 3. Estimated 2000 annual family expenditures on a child, 1 by region and age 11,000 10,500 10,000 ~ .!!! 0 9,500 0 9,000 8,500 8,000 0-2 3-5 6-8 9-11 Age of child • Urban Midwest • Urban South · - • Rural Urban Northeast .,...-·-· -·-· 12-14 15-17 Urban West 1 Regional average for the younger child in middle-income, husband-wife families wilh two children. 2002 Vol. 14No.l on clothing and education for an older child but less on transportation. The estimates should also be adjusted if a household has only one child or more than two children. Families will spend more or less on a child depending on the number of other children in the household and economies of scale. Multivariate analysis was used to estimate expenditures for each budgetary component to derive these figures. Household size and age of the younger child were controlled; household income level and region of the country were not. The results, therefore, are applicable to all families. These expenditures were then assigned to a child by using the method described earlier. Compared with expenditures for each child in a husband-wife, two-child family, expenditures for the child in a one-child family average 24 percent more and for those with three or more children, 23 percent less on each child. To adjust the figures in tables 2 through 7 to estimate annual overall expenditures on an only child, users of this report should, therefore, add 24 percent to the total expense for the child's age category. To estimate expenditures on three or more children, users should subtract 23 percent from the total expense for each child's age category and then sum the totals. An example of adjustments needed for different number of children follows. The total expenses for a middle-income family in the overall United States on a child age 15-17 with no siblings would be $12,230 ($9,860 x 1.24) and the total expenses on three children ages 3-5, 12- 14, and 15-17 would be $21,970 ([$8,980 + $9,690 + $9 ,860] x. 77). For a particular budgetary component, the percentages may be more or less. As family size increases, food costs per child decrease less than housing and transportation costs per child decrease. 31 Single-parent families in this lower income group, therefore, spend a larger proportion of their income on children than do two-parent families. 32 Expenditures by Single-Parent Families The estimates of expenditures on children by husband-wife families do not apply to single-parent families, a group that accounts for an increasing percentage of families with children. Therefore, separate estimates of childrearing expenses in single-parent households were made by using the CE data. Most single-parent families in the survey (90 percent) were headed by a woman. The method used in determining child-rearing expenses for two-parent households was followed. Multivariate analysis was used to estimate expenditures for each budgetary component. Control variables were income level, household size, and age of the younger child (the same age categories as those used with children in two-parent families). A single parent with two children was used as the standard for household size. Income groups of single-parent households (before-tax income under $31,000 and $31,000 and over in 1992 dollars, inflated to 2000 dollars) were selected to correspond with the income groups used in estimating child-rearing expenditures in husband-wife households. This income includes child support payments. The two higher income groups of two-parent families (income between $31,000 and $52,160 and over $52,160 in 1992 dollars) were combined because only 17 percent of single-parent households had a beforetax income of $31 ,000 and over. The sample was weighted to reflect the U.S. population of interest. Children's clothing and child care and education expenditures were divided between the two children in the oneparent household. For food and health care, household member shares were calculated for a three-member household (single parent and two children, with the younger child in one of the six age categories). The USDA food plans and the 1987 National Medical Expenditure Survey were used to do this. These shares for the younger child in a singleparent family were then applied to estimated food and health care expenditures to determine expenses on the younger child in each age category. Housing, transportation, and miscellaneous expenditures were allocated among household members on a per capita basis. Transportation expenses were adjusted to account for nonemployment- related activities in singleparent families. Income and expenses were updated to 2000 dollars. Child-rearing expense estimates for single-parent families are in table 8, p. 42. For the lower income group (2000 before-tax income less than $38,000), a comparison is presented in table 1 of estimated expenditures on the younger child in a single-parent family with two children versus expenditures on the younger child in a husband-wife family with two children. As discussed earlier, 83 percent of single-parent families and 33 percent of husband-wife families were in this lower income group. More single-parent than husband-wife families were in the bottom range of this lower income group. Average income for single-parent families in the lower income group is $15,900; for husband-wife families it is $23,800. However, total expenditures on a child through age 17 are, on average, only 5 percent lower in single-parent households than in two-parent households. Single-parent families in this lower income group, therefore, spend a larger proportion of their income on children than do two-parent families. On average, housing expenses are higher; Family Economics and Nutrition Review Table 1. Comparison of estimated 2000 expenditures on a child1 by lower income single-parent and husband-wife families Single-parent Husband-wife Age of child households households 0-2 $5,270 $6,280 3-5 5,950 6,420 6-8 6,710 6,520 9 - 11 6,260 6,530 12 -14 6,730 7,380 15-17 7,460 7,280 Totai(0-17) $115,140 $121 ,230 1 Estimates are for the younger child in two-child families in the overall Un~ed States with 2000 before-tax income less than $38,000. whereas, transportation, health care, child care and education, and miscellaneous expenditures on a child are lower in single-parent than in husband-wife households. Child-related food and clothing expenditures are similar, on average, in single- and two-parent families. For the higher income group of singleparent families (2000 before-tax income of$38,000 and over), child-rearing expense estimates are about the same as those for two-parent households in the before-tax income group of $64,000 and over. Total expenses, in 2000 dollars, for the younger child through age 17 are$242,910for singleparent families versus $241,770 for husband-wife families. Child-rearing expenses for the higher income group of single-parent families, therefore, also are a larger proportion of income than they are in husband-wife families. Thus, expenditures on children do not differ much between single-parent and husband-wife households. What differs is household income levels. Because single-parent families have one less potential earner than do husband-wife families, on average, their total household income is lower, and child-rearing expenses are a greater percentage of this income. 2002 Yol.l4No. I Estimates cover only out-of-pocket child-rearing expenditures made by the parent with primary care of the child and do not include child-related expenditures made by the parent without primary care or made by others, such as grandparents. Such expenditures could not be estimated from the data. Overall expenses by both parents on a child in a single-parent household are likely greater than estimates of this study. The procedure detailed earlier was repeated to determine the extent of the difference in expenditures on an older child in single-parent households. The focus was on the older child, and a family with two children was used as the standard. On average, single-parent households with two children spend 7 percent less on the older child than on the younger child (in addition to age-related differences). This contrasts with husband-wife households whose expenditures are unaffected by birth order. As with husband-wife households, single-parent households spend more or less if there is only one child or three or more children. Multivariate analysis was used to estimate expenditures for each budgetary component to determine these differences. Household size and age of the younger child were control variables. Expenditures were then assigned to a child by using the method described earlier. Compared with expenditures for the younger child in a single-parent, two-child family, expenditures for an only child in a single-parent household average 35 percent more, and expenditures for three or more children in a single-parent household average 28 percent less on each child. Other Expenditures on Children Expenditures on a child that were estimated in this study consist of direct parental expenses made on a child through age 17 for seven major budgetary components. These direct expenditures exclude costs related to childbirth and prenatal health care. In 1996 these particular health care costs averaged $7,090 for a normal deli very and $11,450 for a Cesarean delivery (Mushinski, 1998). These costs may be reduced by health insurance. One of the largest expenses made on children after age 17 is the cost of a college education. The College Board (2000) estimates that in 2000-2001, average annual tuition and fees are $3,420 at 4-year public colleges and $13,688 at4-yearprivate colleges. Annual room and board is $4,705 at 4-year public colleges and $5,447 at 4-year private colleges. For 2-year colleges in 2000-2001, average annual tuition and fees are $1,655 at public colleges and $8,210 at private colleges. Annual room and board is $4,685 at 2-year private colleges. No estimates of room and board are given for 2-year public colleges. Other parental expenses on children after age 17 include those associated with children living at home, or if children do not live at home, gifts and other contributions to them. 33 Estimating Future Costs The estimates presented in this study represent household expenditures on a child of a certain age in 2000. To estimate these expenses for the first 17 years, we need to incorporate future price changes in the figures. To do this, we use a future cost formula, such that: where: Cf = projected future annual dollar expenditure on a child of a particular age CP = present (2000) annual dollar expenditure on a child of a particular age i = projected annual inflation (or deflation) n =number of years from present until child will reach a particular age An example is presented of estimated Estimated annual expenditures on children 1 born in 2000, by income group, future expenditures on the younger overall United States child in a husband-wife family with two children for each of the three Income grouQ income groups for the overall United Year Age Lowest Middle Highest States. The example assumes a child is born in 2000 and reaches age 17 2CXXl <1 $6,280 $8,740 $13,000 in the year 2017. The example also 2001 6,520 9,070 13,490 assumes that the average annual 2002 2 6,770 9,420 14,010 inflation rate over this time is 3.8 2003 3 7,180 10,040 14,850 percent, the average annual inflation 2004 4 7,450 10,420 15,420 rate over the past 20 years (U.S. Department of Commerce, 2000). 20li 5 7,740 10,820 16,000 Thus total family expenses on a child 20)3 6 8,160 11,240 16,460 through age 17 would be $171,460, 2007 7 8,470 11,670 17,090 $233,530, and $340,130 for households 2COO 8 8,790 12,120 17,740 in the lowest, middle, and highest 2rol 9 9,130 12,520 18,210 income groups, respectively. In 2000 dollars, these figures would be 2010 10 9,480 13,000 18,910 $121,230,$165,630, and $241,770. 2011 11 9,840 13,490 19,620 2012 12 11,550 15,160 21,700 Inflation rates other than 3.8 percent 2013 13 11 ,980 15,740 22,520 could be used in the formula if projec- 2014 14 12,440 16,330 23,380 tions of these rates vary in the future. Also, it is somewhat unrealistic to 2015 15 12,740 17,250 24,950 assume that households remain in 2016 16 13,220 17,910 25,900 one income category as a child ages. 2017 17 13,720 18,590 26,880 For most families, income rises over Total time. In addition, such projections $171,460 $233,530 $340,130 assume child-rearing expenditures 1 change only with inflation, but Estimates are for the younger child in husband·wife families with two children. parental expenditure patterns also change over time. 34 Family Economics and Nutrition Review The estimates do not include all government expenditures on children. Examples of excluded expenses are public education, Medicaid, and school meals. The actual expenditures on children (by parents and the government) would be higher than reported in this study, especially for the lowest income group. Indirect child-rearing costs are also not included in the estimates. Although these costs are typically more difficult to measure than are direct expenditures, they can be substantial. The time involved in rearing children is considerable. In addition, one or both parents may need to reduce hours spent in the labor force to care for children, thus reducing current earnings and future career opportunities. The indirect costs of child rearing may exceed the direct costs. For more on these indirect costs, see Bryant, Zick, and Kim (1992); Ireland and Ward (1995); Longman (1998); and Spalter-Roth and Hartmann (1990). 2002 Voi.14No.1 References Bryant, W.K., Zick, C.D., & Kim, H. (1992). The Dollar Value of Household Work. College of Human Ecology, Ithaca, NY: Cornell University. The College Board. (2000). Trends in College Pricing 2000. Retrieved March 2001 from www .collegeboard.org. Ireland, T.R., & Ward, J.O. (1995). Valuing Children in Litigation: Family and Individual Loss Assessment. Tucson, AZ: Lawyers and Judges Publishing Company, Inc. Lefkowitz, D., & Monheit, A. ( 1991 ). Health Insurance, Use of Health Services, and Health Care Expenditures. National Medical Expenditure Survey Research Findings 12. Publication No. 92-0017. U.S. Department of Health and Human Services, Public Health Service, Agency for Health Care Policy and Research. Lino, M., & Johnson, D.S. ( 1995). Housing, transportation, and miscellaneous expenditures on children: A comparison of methodologies. Family Economics Review 8( 1 ):2-12. Longman, P.J. (1998, March 30). The Cost of Children. U.S. News & World Report 124( 12):50-58. Mushinski, M. (1998). Average charges for uncomplicated vaginal, Cesarean and VBAC deliveries: Regional variations, United States, 1996. Statistical Bulletin 79(3):17-28. Spalter-Roth, R.M. , & Hartmann, H.l. (1990). Unnecessary Losses: Costs to Americans of the Lack of Family and Medical Leave. Washington, DC: Institute for Women's Policy Research. U.S. Department of Agriculture, Agricultural Research Service. (1994 ). Cost of food at home. Family Economics Review 7(4):45 . U.S. Department of Commerce, Bureau of the Census. (2000). Statistical Abstract of the United States, 2000. [120th ed.]. U.S. Department of Health and Human Services, Office of the Assistant Secretary for Planning and Evaluation. (1990). Estimates of Expenditures on Children and Child Support Guidelines. U.S . Department of Transportation, Federal Highway Administration. ( 1994 ). I 990 Nationwide Personal Transportation Study. 35 Table 2. Estimated annual expenditures* on a child by husband-wife families, overall United States, 2000 Child care Transpor- Health and Miscel- Age of Child Total Housing Food tation Clothing care education laneoust Before-tax income: Less than $38,000 (Average=$23,800) 0-2 $6,280 $2,400 $880 $770 $380 $440 $800 $610 3-5 6,420 2,370 980 750 370 420 900 630 6-8 6,520 2,290 1,260 870 410 490 530 670 9- 11 6,530 2,070 1,510 950 450 530 320 700 12- 14 7,380 2,310 1,590 1,070 760 540 230 880 15 - 17 7,280 1,860 1,720 1,440 670 570 380 640 Total $121,230 $39,900 $23,820 $17,550 $9,120 $8,970 $9,480 $12,390 Before-tax income: $38,000 to $64,000 (Average=$50,600) 0-2 $8,740 $3,250 $1,060 $1 '150 $440 $580 $1,310 $950 3-5 8,980 3,220 1,220 1 '130 430 560 1,450 970 6-8 8,990 3,140 1,550 1,250 480 630 930 1,010 9 - 11 8,950 2,920 1,830 1,330 530 690 610 1,040 12 - 14 9,690 3,150 1,840 1,450 890 690 450 1,220 15 - 17 9,860 2,710 2,050 1,830 790 730 770 980 Total $165,630 $55,170 $28,650 $24,420 $10,680 $11 ,640 $16,560 $18,510 Before-tax income: More than $64,000 (Average=$95,800) 0-2 $13,000 $5,160 $1,400 $1 ,610 $580 $670 $1,980 $1,600 3-5 13,280 5,1 30 1,580 1,590 570 640 2,160 1,610 6-8 13,160 5,050 1,910 1,710 620 730 1,490 1,650 9- 11 13,020 4,830 2,220 1,790 680 790 1,030 1,680 12 - 14 13,870 5,070 2,330 1,910 1 '120 790 790 1,860 15 - 17 14,260 4,620 2,450 2,310 1,020 840 1,390 1,630 Total $241,770 $89,580 $35,670 $32,760 $13,770 $13,380 $26,520 $30,090 *Estimates are based on 1990-92 Consumer Expenditure Survey data updated to 2000 dollars using the Consumer Price Index. For each age category, the expense estimates represent average child-rearing expenditures for each age (e.g., the expense for the 3-5 age category, on average, applies to the 3-year-old, the 4-year-old, or the 5-year-old). The figures represent estimated expenses on the younger child in a two-child family. Estimates are about the same for the older child, so to calculate expenses for two children, figures should be summed for the appropriate age categories. To estimate expenses for an only child, multiply the total expense for the appropriate age category by 1.24. To estimate expenses for each child in a family with three or more children, multiply the total expense for each appropriate age category by 0.77. For expenses on all children in a family, these totals should be summed. tMiscellaneous expenses include personal care items, entertainment, and reading materials. 36 Family Economics and Nutrition Review Table 3. Estimated annual expenditures* on a child by husband-wife families, urban West,t 2000 Child care Transpor- Health and Miscel- Age of Child Total Housing Food tation Clothing care education laneousl= Before-tax income: Less than $38,200 (Average=$23,800) 0-2 $7,000 $2,930 $970 $850 $360 $380 $790 $720 3-5 7,160 2,910 1,080 830 350 360 890 740 6-8 7,300 2,870 1,380 940 390 410 530 780 9 - 11 7,400 2,71 0 1,660 1,010 440 440 320 820 12 - 14 8,200 2,910 1,730 1 '140 740 460 230 990 15 - 17 8,150 2,500 1,870 1,510 650 480 380 760 Total $135,630 $50,490 $26,070 $18,840 $8,790 $7,590 $9,420 $14,430 Before-tax income: $38,200 to $64,200 (Average=$50,800) 0-2 $9,470 $3,770 $1 '140 $1 ,240 $430 $510 $1,320 $1,060 3-5 9,730 3,750 1,310 1,220 420 490 1,460 1,080 6-8 9,770 3,71 0 1,670 1,330 460 550 930 1,120 9- 11 9,810 3,550 1,970 1,410 510 600 610 1 '160 12 - 14 10,520 3,750 1,980 1,540 860 610 450 1,330 15 - 17 10,730 3,340 2,200 1,920 770 630 770 1 '100 Total $180,090 $65,610 $30,810 $25,980 $10,350 $10,170 $16,620 $20,550 Before-tax income: More than $64,200 (Average=$96,100) 0-2 $13,600 $5,580 $1,470 $1,710 $560 $600 $1,990 $1,690 3-5 13,910 5,560 1,660 1,690 550 570 2,170 1,710 6-8 13,810 5,520 2,000 1,800 600 650 1,490 1,750 9 - 11 13,760 5,360 2,340 1,870 660 700 1,040 1,790 12 - 14 14,550 5,550 2,440 2,000 1,080 710 810 1,960 15 - 17 14,980 5,140 2,580 2,400 980 740 1,410 1,730 Total $253,830 $98,130 $37,470 $34,410 $13,290 $11,910 $26,730 $31,890 *Estimates are based on 1990-92 Consumer Expenditure Survey data updated to 2000 dollars using the regional Consumer Price Index. For each age category, the expense estimates represent average child-rearing expenditures for each age (e.g., the expense for the 3-5 age category, on average, applies to the 3-year-old, the 4-year-old, or the 5-year-old). The figures represent estimated expenses on the younger child in a two-child family. Estimates are about the same for the older child, so to calculate expenses for two children, figures should be summed for the appropriate age categories. To estimate expenses for an only child, multiply the total expense for the appropriate age category by 1.24. To estimate expenses for each child in a family with three or more children, multiply the total expense for each appropriate age category by 0.77. For expenses on all children in a family, these totals should be summed. tThe Western region consists of Alaska, Arizona, California, Colorado, Hawaii, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, and Wyoming. l=Miscellaneous expenses include personal care items, entertainment, and reading materials. 2002 Voi.14No.1 37 Table 4. Estimated annual expenditures* on a child by husband-wife families, urban Northeast,t 2000 Child care Transpor- Health and Miscel- Age of Child Total Housing Food tation Clothing care education laneous:l: Before-tax income: Less than $37,800 (Average=$23,600) 0-2 $6,570 $2,860 $980 $640 $400 $430 $660 $600 3-5 6,700 2,840 1,080 610 390 410 750 620 6-8 6,910 2,800 1,390 720 440 470 430 660 9- 11 7,050 2,640 1,660 800 490 510 250 700 12 - 14 7,920 2,840 1,740 930 830 520 180 880 15 - 17 7,800 2,440 1,870 1,280 730 550 290 640 Total $128,850 $49,260 $26,160 $14,940 $9,840 $8,670 $7,680 $12,300 Before-tax income: $37,800 to $63,500 (Average=$50,200) 0-2 $8,990 $3,680 $1 '1 50 $1 ,030 $480 $580 $1 '120 $950 3-5 9,200 3,660 1,310 1,000 460 550 1,250 970 6-8 9,330 3,620 1,670 1 '120 510 630 780 1,000 9- 11 9,400 3,460 1,970 1 '190 570 670 500 1,040 12 - 14 10,190 3,660 1,970 1,320 970 690 360 1,220 15 - 17 10,330 3,260 2,190 1,690 860 720 620 990 Total $172,320 $64,020 $30,780 $22,050 $11 ,550 $11 ,520 $13,890 $18,510 Before-tax income: More than $63,500 (Average=$95,100) 0-2 $13,010 $5,440 $1 ,470 $1,490 $610 $670 $1,750 $1,580 3-5 13,310 5,430 1,650 1,470 600 650 1,910 1,600 6-8 13,290 5,390 1,990 1,580 660 740 1,290 1,640 9- 11 13,250 5,230 2,320 1,650 720 780 870 1,680 12 - 14 14,160 5,420 2,430 1,780 1,200 800 670 1,860 15 - 17 14,450 5,020 2,550 2,170 1,090 830 1 '160 1,630 Total $244,410 $95,790 $37,230 $30,420 $14,640 $13,410 $22,950 $29,970 *Estimates are based on 1990-92 Consumer Expenditure Survey data updated to 2000 dollars using the regional Consumer Price Index. For each age category, the expense estimates represent average child-rearing expenditures for each age (e.g., the expense for the 3-5 age category, on average, applies to
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Title | Family Economics and Nutrition Review [Volume 14, Number 1] |
Date | 2002 |
Contributors (group) | Center for Nutrition Policy and Promotion (U.S.) |
Subject headings | Home economics--United States--Periodicals;Nutrition policy--United State--Periodicals |
Type | Text |
Format | Pamphlets |
Physical description | v. : $b ill. ; $c 28 cm. |
Publisher | Washington, D.C. : U.S. Dept. of Agriculture |
Language | en |
Contributing institution | Martha Blakeney Hodges Special Collections and University Archives, UNCG University Libraries |
Source collection | Government Documents Collection (UNCG University Libraries) |
Rights statement | http://rightsstatements.org/vocab/NoC-US/1.0/ |
Additional rights information | NO COPYRIGHT - UNITED STATES. This item has been determined to be free of copyright restrictions in the United States. The user is responsible for determining actual copyright status for any reuse of the material. |
SUDOC number | A 77.245:14/1 |
Digital publisher | The University of North Carolina at Greensboro, University Libraries, PO Box 26170, Greensboro NC 27402-6170, 336.334.5482 |
Full-text | Research Articles 3 Using the Interactive Healthy Eating Index to Assess the Quality of College Students' Diets Hazel Hiza and Shirley A. Gerrior 13 Consumers of Reduced-Fat, Skim, and Whole Milks: Intake Status of Micronutrients and Dietary Fiber Helen H-C. Lee and Shirley A. Gerrior 25 Expenditures on Children by Families, 2000 PROPE TV LIBR Mark Uno 1 43 Selected Food and Nutrient Highlights of the 20th Century: U.S. Food Supply Series Lisa Bente and Shirley A. Gerrior 52 The Quality of Young Children's Diets Mark Uno, P. Peter Basiotis, Shirley A. Gerrior, and Andrea Carlson Research Briefs 61 Dietary Guidance, 1970 to 1999: Does the U.S. Food Supply Support It? Shirley A. Gerrior and Lisa Bente 67 Insight 20: Consumption of Food Group Servings: People's Perceptions vs. Reality P. Peter Basiotis, Mark Uno, and Julia M. Dinkins 71 Insight 22: Serving Sizes in the Food Guide Pyramid and on the Nutrition Facts Label: What's Different and Why? David Herring, Patricia Britten, Carole Davis, and Kim Tuepker Regular Items USDA Activities • Federal Studies • Journal Abstracts • Food Plans • Consumer Prices • Poverty Thresholds Ann M. Veneman, Secretary U.S. Department of Agriculture Eric M. Bost, Under Secretary Food, Nutrition, and Consumer Services Steven N. Christensen, Acting Deputy Director Center for Nutrition Policy and Promotion P. Peter Basiotis, Director Nutrition Policy and Analysis Staff The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, gender, religion, age, disability, political beliefs, sexual orientation, or marital or family status. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write USDA, Director, Office of Civil Rights, Room 326-W, Whitten Building, 14th and Independence Avenue, SW, Washington, DC 20250- 9410 or call (202) 720-5964 (voice and TDD). USDA is an equal opportunity provider and employer. Editor Julia M. Dinkins Assistant Editor David M. Herring Features Editor Mark Uno Managing Editor Jane W. Fleming Peer Review Coordinator Hazel Hiza Family Economics and Nutrition Review is written and published semiannually by the Center for Nutrition Policy and Promotion,U.S. Department of Agriculture, Washington, DC. The Secretary of Agriculture has determined that publication of this periodical is necessary in the transaction of the public business required by law of the Department. This publication is not copyrighted. Contents may be reprinted without permission, but credit to Family Economics and Nutrition Review would be appreciated. Use of commercial or trade names does not imply approval or constitute endorsement by USDA. Family Economics and Nutrition Review is indexed in the following databases: AGRICOLA, Ageline, Economic Literature Index, ERIC, Family Studies, PAIS, and Sociological Abstracts. Family Economics and Nutrition Review is for sale by the Superintendent of Documents. Subscription price is $13 per year ($18.20 for foreign addresses). Send subscription order and change of address to Superintendent of Documents, P.O. Box 371954, Pittsburgh, PA 15250-7954. (See subscription form on p. 95.) Original manuscripts are accepted for publication. (See "guidelines for authors" on back inside cover.) Suggestions or comments concerning this publication should be addressed to Julia M. Dinkins, Editor, Family Economics and Nutrition Review, Center for Nutrition Policy and Promotion, USDA, 3101 Park Center Drive, Room 1034, Alexandria, VA 22302-1594. The Family Economics and Nutrition Review is now available at http:// www.cnpp.usda.gov. (See p. 93.) Research Articles 3 Using the Interactive Healthy Eating Index to Assess the Quality of College Students' Diets Hazel Hiza and Shirley A. Gerrior 13 Consumers of Reduced-Fat, Skim, and Whole Milks: Intake Status of 25 Micronutrients and Dietary Fiber Helen H-C. Lee and Shirley A. Gerrior Expenditures on Children by Families, 2000 Mark Uno PROPERTY OF THE LIBRARY AUG 1 3 2002 43 Selected Food and Nutrient Highlights of the 20th 8W1W~~ ty of N th C I' u.s. Food Supply Series or aroma LisaBenteandShirleyA. Gerrior at Greensboro 52 The Quality of Young Children's Diets Mark Uno, P. Peter Basiotis, Shirley A. Gerrior, and Andrea Carlson Research Briefs 61 Dietary Guidance, 1970 to 1999: Does the U.S. Food Supply Support It? Shirley A. Gerrior and Lisa Bente 67 Insight 20: Consumption of Food Group Servings: People's Perceptions vs. Reality P. Peter Basiotis, Mark Uno, and Julia M. Dinkins 71 Insight 22: Serving Sizes in the Food Guide Pyramid and on the Nutrition Facts Label: What's Different and Why? David Herring, Patricia Britten, Carole Davis, and Kim Tuepker Regular Items 74 Research and Evaluation Activities in USDA 78 Federal Studies 88 Journal Abstracts 90 Official USDA Food Plans: Cost of Food at Home at Four Levels, U.S. Average, May 2002 91 Consumer Prices 92 U.S. Poverty Thresholds and Related Statistics Volume 14, Number 1 2002 Hazel Hiza, PhD, RD Shirley A. Gerrior, PhD, RD U.S. Department of Agriculture Center for Nutrition Policy and Promotion 2002 Vol. 14 No. 1 Research Articles Using the Interactive Healthy Eating Index to Assess the Quality of College Students' Diets The Interactive Healthy Eating Index (IHEI) is an Internet application of the Healthy Eating Index (HE I)-a single summary measure of overall diet quality that was developed by the U.S. Department of Agriculture. We used this application to assess the quality of the diets of 100 students at a State university. Paired sample t tests were used to analyze students' 1-day dietary records to compare students' mean HEI and component scores with dietary recommendations. The mean overall HEI score (67.2 of a possible 100) for the total sample exceeded the national average for a similar age group by 6.3 points. Students who were female, less than 20 years old, or nonscience majors had the highest HEI scores. While the students' overall HEI score was higher than the national average, students' diets still need improvement. Our findings show that the IHEI can be applied in a university setting to analyze the quality of students' diets. The IHEI can also be used as a valuable component of collegiate introductory nutrition and health courses. E xtensive research has been conducted on the links between diet and chronic disease, but little has been conducted on methods to assess overall diet quality. To measure how well American diets conform to recommendations, the U.S. Department of Agriculture's (USDA) Center for Nutrition Policy and Promotion (CNPP) developed the Healthy Eating Index (HEI), a single summary measure (or "report card") of overall diet quality in 1995 (Kennedy, Bowman, Lino, Gerrior & Basiotis, 1999; Frazao, 1999). The HEI provides a "snapshot" of the types of foods people eat, the variety in their diets, and the degree to which their diets comply with Federal dietary guidance (i.e., specific recommendations of the Dietary Guidelines for Americans) (Bowman, Lino, Gerrior & Basiotis, 1998; U.S. Department of Agriculture [USDA] and U.S. Department of Health and Human Services [DHHS], 1995) and the Food Guide Pyramid (USDA, 1996). The HEI provides insight into the types of dietary changes needed to improve the eating patterns of Americans. Many Americans are confused about what to eat (and what not to eat); others fail to follow healthful eating practices even when they understand basic nutrition (Frazao, 1999). Thus, the USDA developed the Interactive Healthy Eating Index (IHEI) to increase awareness of diet quality and to promote healthful eating habits. Based on the HEI, the IHEI is a consumeroriented, online dietary intake assessment tool that allows Americans (2 years and older) to evaluate the quality of their diets in terms of current dietary guidance. The IHEI also provides immediate feedback via scoring options and targeted nutrition education messages. Along with increasing awareness of the quality of a person's diet, the IHEI helps those who may 3 have access to nutrition information but who may not have the background to apply or interpret it conect1y. College students are expected to respond favorably to the IHEI and may benefit positively from its use. They are both interested in nutrition information (Hertzler & Frary, 1992) and are computer literate. Today's college students take basic nutrition courses in record numbers. Many of ti)ese nutrition courses are now computerassisted instruction or computerassisted learning (Shah, George & Himburg, 1999). Also, today's young adults are the first generation to have grown up with the benefit of dietary recommendations to reduce intake of fat and cholesterol and increase intake of complex carbohydrate and fiber. Hence, college-age Americans introduced as children to dietary guidance, such as the Dietary Guidelines for Americans1 and the USDA Food Guide Pyramid (USDA & DHHS, 1995; USDA, 1996), could be expected to have diets reflective of this guidance. Overall, however, college students often develop poor eating habits. These practices may result from skipping meals, choosing inappropriate foods, dieting excessively, consuming inappropriate snacks, and avoiding certain food s (Harless, Koch & Slapar, 1996). Often, these practices result in low intake or imbalance of calories and important nutrients. Some college students eat foods low in fat (e.g., reduced-fat milks) and high in complex carbohydrates (e.g. , pasta). Many others, however, frequently eat fastfood and restaurant foods, both of which are associated with higher 1 Since the completion of this study and the development of the IHEI, a new version of the Dietary Guidelines for Americans was released (USDA & DHHS, 2000). Also, an updated version of the IHEI is now available on the USDA Web site at www.cnpp.usda.gov. 4 intakes of fat and sodium and lower intakes of dietary fiber and calcium (Georgiou et al., 1997). These behaviors may contribute to inadequacies in the diets of college students, affect their health status during a formative period of growth and development, and eventually influence the quality of life they may experience in their middleaged and senior years. Consequently, this population needs more information about making dietary choices that include more nutrient-dense foods (especially for calcium and iron) and reduced-fat foods (Hertzler et al., 1992). This study assessed the quality of college students' diets. The IHEI was used to assess that quality. To our knowledge, this study is the first to use and evaluate the IHEI as a measure of the quality of people's diets. Indices An important definition in this study is diet quality, a definition that variesdepending on the attributes selected. As applied in this study, diet quality consists of a comprehensive set of indicators that incorporated nutrient needs and recommendations of food servings into one measure, the Healthy Eating Index (Kennedy et al., 1995). Healthy Eating Index The total HEI score is the sum of 10 equally weighted dietary components, each having a maximum score of 10 and a minimum score of zero. A maximum score of 10 was assigned to each of the five food group components of the HEI if a person's diet met or exceeded the recommended number of servings for a food group of the Food Guide Pyramid. High component scores indicate intakes close to the recommended ranges or amounts; low component scores, less compliance with the recommended ranges or amounts. The 10 components each represent various aspects of a healthful diet. • Components 1 through 5 measure the degree to which a person's diet conforms to the recommended servings of the Food Guide Pyramid for the five major food groups: grains, vegetables, fruits, milk, and meat. • Component 6 measures total fat consumption as a percentage of total food energy intake. • Component 7 measures saturated fat consumption as a percentage of t" t" ' food energy intake. • Component 8 measures total cholesterol intake. • Component 9 measures total sodium intake. Component 10 measures the variety in a person's diet. In this study, variety in the diet was based on the total number of different foods eaten in a day in amounts sufficient to contribute at least one-half of a food group.2 The maximum overall HEI score a person can receive is 100. A score greater than 80 classifies a diet as "good"; scores between 51 and 80 classify a diet as "needs improvement"; a score less than 51 classifies a diet as "poor." Because no single dietary component defmes the Index, doing well on only one component does not ensure a high overall score. A more detailed description of the development of the HEI is described elsewhere (Bowman etal., 1998). 20thers have reported diet variety as the total number of unique foods consumed in a day (Kant, 1996). Family Economics and Nutrition Review Interactive Healthy Eating Index An online dietary assessment tool, the IHEI uses the same data sources as those used for the HEI. The food descriptor files, which contain more than 8,000 foods, were modified to best reflect users' food choices and include fast-foods and brand names for numerous food items reported as being consumed by survey respondents. These data reflected the food choices of a sample population of about 15,000 individuals. Modified food descriptions were matched to appropriate data from several files of the USDA's Continuing Survey of Food Intakes by Individuals (CSFll): nutrients, serving measures, and Pyramid servings. When a food could not be linked directly to a Pyramid serving, it was assigned a Pyramid serving of a similar food. Methods Subjects In the spring of 1999, we conducted a pilot study at a State university to test the application of the IHEI. The subjects, 250 college students enrolled in an introductory nutrition course, represented a variety of academic majors. Many students enrolled in the course to meet a science requirement. Many students did not provide demographic information or did not complete all necessary components of the IHEI; thus, the final sample size was 100. Data Collection As an assignment, students evaluated the IHEI and completed a 1-day dietary food record. All students were given guidelines for using the IHEI and an evaluation form to complete. After accessing the IHEI from the university's computer laboratory, students entered information about 2002 Vol. 14 No. 1 their age, gender, and diet for selfevaluation. Each student's information was processed by a Web server and linked to the databases that include information on nutrients, serving measures, and Pyramid servings. This process calculated each student's 10 component scores and an overall HEI score, as well as nutrient intakes of up to 24 nutrients and dietary components. The evaluation forms and students' IHEI information were provided to course instructors for purposes related to the assignment and then given to researchers for further analysis. Analysis An IHEI student database was created by using the Statistical Package for the Social Sciences (SPSS, 1997); a coding manual was developed to account for all collected data. The 106 variables consisted of the students' demographic information, HEI and component score variables, Pyramid servings of the five major food groups, national average comparisons of HEI and component scores, nutrient intakes, and recommended dietary intake for each nutrient. Subjects were divided into the following subgroups: gender, age categories (less than 20 years and 20 years or older), and majors (science: dentistry, engineering science, agricultural science and forestry, medicine, nursing, and pharmacy; and nonscience: arts and sciences, business and economics, creative arts, human resources and education, journalism, law, and social work). SPSS for windows was used to conduct Student t tests (SPSS, 1997), and paired sample t tests were used to compare mean scores between subgroups (the students' intake and the recommendation) for HEI scores, HEI component scores, nutrient intakes, and Pyramid servings. The independent t test was applied to compare these variables based on selected demographic characteristics of the subjects. Students, regardless of age category, did not meet the minimum daily recommendations for fruits, milk, and meat. 5 Results and Discussion Demographics of Sample Over twice as many female students as male students (70 vs. 30 percent) provided a 24-hour dietary record (fig. 1). Most (three-fifths) of the students were 20 years old or older, and over half were science majors (55 percent); that is, they majored in dentistry, engineering science, agricultural science and forestry, medicine, nursing, and pharmacy. Food Guide Pyramid Servings For this college group, the recommended daily minimum number of servings of the Food Guide Pyramid ranges from 2 to 6 (table 1). To meet the daily minimum servings, this age group needs to consume a minimum of 2 servings each of fruits, milk, and meat; 3 servings of vegetables; and 6 servings of grains. This student group (overall and by gender, age, and major) tended to meet the minimum recommendations for grains: 6.2 to 6.5 (table 2). Males consumed significantly fewer daily servings of fruits (1.3) and milk (1.6) than are recommended; females consumed significantly fewer servings of vegetables (2.5), fruits (1.4), milk (1.3), and meat (1.2). Students, regardless of age category, did not meet the minimum daily recommendations for fruits, milk, and meat. Whereas the older group consumed 1.2 to 1.4 servings of these food groups, the younger age group consumed 1.4 to 1.6 servings. Both age groups met or exceeded-but not significantly-the minimum recommendations for grains. Whereas nonscience majors failed to meet the recommended daily minimum servings of fruits and milk, science majors failed to meet the recommendations for vegetables, fruits, milk, and meat. Each group's intake 6 Figure 1. Selected demographic characteristics of college students 45% .••.•·.•·.•·.•·.•.••· •.•··•··•··•··•··•··•··•··•··•··•··•··• ··.•.:•.:•.:·.:.:•· :.:•·:·:·:·:•·:·:•·:·:·:·:··::··:•:··:•:··::··::··:•:··:•:··:•·:·:•·: ··•··••·•··••·•·•··•··• •••••.•• •·•·•··•·•·• ::::::::::::. ........... ·: ·:·:·:•:·:•::· :•·..•..•..·•..••..•·..•·..•....•·..•·..•·..•·..•..•..·.•...•·..•·..•·..•.·.•...•.·..•·..•·..•·..•..•..· ·:·:·:·:·:·:·:·:·:·:·:·:·:·:·:•·:•·•:!·•: ~Females • Males 2lJ ~20 years • <20 years [88 Science• • Nonscience•• • Science majors: dentistry, engineering science, agricultural science and forestry, medicine, nursing, and pharmacy. •• Nonscience majors: arts and sciences, business and economics, creative arts, human resources and education, journalism, law, physical education, and social work. n=100. Mean age = 20.5 years. Table 1. Recommended minimum and maximum number of USDA Food Guide Pyramid servings per day, by age-gender categories of college students Category Energy Grains Vegetables Fruits Milk Meat1 (kilocalories) Females 11-24 2200 6-9 3-4 2-3 2-3 2-2.4 Females 25-50 2200 6-9 3-4 2-3 2·2 2-2.4 Males 19-24 2900 6-11 3-5 2-4 2·3 2-2.8 Males25-50 2900 6-11 3-5 2-4 2-2 2-2.8 Males 15-18 3000 6-11 3-5 2-4 2-3 2-2.8 10ne serving of meat equals 2.5 ounces of lean meat. Source: Bowman, S.A., Uno, M., Gerrior, S.A., and Basiotis, P.P. 1998. The Healthy Eating Index: 1994·96. U.S. Department of Agriculture, Center for Nutrition Policy and Promotion. CNPP·5. represented shortfalls of 0.6 to 0. 7 daily servings of each of these food groups. Nonscience majors met or exceeded the recommended minimum number of daily servings of grain~ (6.5 vs. 6.0). On average, students in this study did not meet the maximum recommended serving of any of the five major food groups of the Food Guide Pyramid. Our findings disagree with those of Schuette and colleagues (1996) who reported that college students in an introductory nutrition course had daily mean intakes from each of the five groups at or above the recommended minimum number of servings. Previous research, however, shows that even Family Economics and Nutrition Review Table 2. Mean Pyramid servings consumed by college students, 1-day intake1 Total Pyramid sample Gender Age Major2 food groups (n=100) Male Female <20 years ~20 years Science Nonscience Grains 6.3 6.3 6.2 6.3 6.2 5.0 6.5 Vegetables 2.8 3.4 2.5* 2.9 2.7 2.4* 3.2 Fruits 1.4* 1.3* 1.4* 1.5* 1.2* 1.3* 1.4* Milk 1.4* 1.6* 1.3* 1.4* 1.3* 1.4* 1.3* Meat 1.5* 2.2 1.2* 1.6* 1.5* 1.3* 1.7 1 Paired ttests were used to compare mean (± standard error of the mean) intake with the recommended minimum number of servings. 2Science majors: dentistry, engineering science, agricultural science and forestry, medicine, nursing, and pharmacy. Nonscience majors: arts and sciences, business and economics, creative arts, human resources and education, journalism, law, physical education, and social work. • Values are significantly lower than the recommended minimum number of Pyramid servings (p< .05). students consuming foods at an upper level distribution (the 75'h percentile of the median) did not meet the recommended daily minimum servings of grains and vegetables but did meet the recommended servings for fruit, milk, and meat (Georgiou et al., 1997). This finding illustrates how few college students actually meet the recommended maximum serving of the Food Guide Pyramid and is supportive of our results. However, in each of these studies, underreporting the types of food consumed and underestimating their portion sizes may be a factor. Thus, actual intake of these food groups may be higher than indicated. Students have been found to underestimate food portion sizes when using the Food Guide Pyramid. This is a source of error that influences assessment of nutritional adequacy (Tavelli, Beerman, Shultz & Heiss, 1998). Selected Nutrient Intakes Female and male students' intakes met or exceeded the 1989 Recommended Dietary Allowances (RDA) for most of the selected nutrients-vitamins A, C, and B6; folate; and iron (table 3). Female students' intake of calcium, however, was significantly lower than the RDA. Although students' reported intakes of vitamins A and C exceeded 2002 Vol. 14 No. 1 100 percent of the RDA, the total sample still failed to meet the minimum Pyramid servings of fruits and vegetables (table 2). Fruits and vegetables are the key sources of vitamins A and C as well as important contributors to folate and vitamin B6. Underreporting of foods, such as orange juice (a beverage vs. a food), and the vegetables in grain mixtures and other mixed dishes-such as pizza and Mexican entrees, which are popular with college students-is assumed by the authors and helps to explain this discrepancy. Also, the fact that male students and nonscience majors met the minimum number of vegetable servings may be explained in part by compliance with recommendations because of an awareness of the benefits of healthful nutrition. Many non-nutrition majors enrolled in basic nutrition courses make positive dietary changes (Mitchell, 1990). We expected a more apparent link between the mean intakes of nutrients and food sources-such as a link between vitamin A and vegetables and fruits, vitamin C and fruits, folate and fruits and grains, and iron and fortified grains and meat. The mean intakes of these nutrients appear to be adequate for both male and female students, but these same students generally consumed less than the recommended minimum number of servings (with the exception of grains) from these food groups. This finding is supported by Georgiou and colleagues (1997) who determined that college students and graduates ate more grains high in dietary fiber, more fruits, more darkgreen vegetables, and more lowfat milks and meats than did nonstudents. Females, however, still failed to meet the minimum recommendations for grains, vegetables, and fruits. Our findings are also similar to those of Tavelli and colleagues (1998) who found that although the mean intakes of nutrients appear adequate, college students often consumed less than the recommended minimum number of servings from the Food Guide Pyramid. Thus, using the minimum recommendations of the Food Guide Pyramid as criteria of dietary adequacy may be misleading in terms of actual nutrient intake for some nutrients. While the Pyramid may be a good indicator for screening nutritionally inadequate diets, further analysis of the nutritional adequacy of the total diet is needed to account for nutrient contributions from food mixtures and reported incorrect estimations of serving sizes (Schuette, Song & Hoerr, 1996). 7 Female and male students' intakes met or exceeded the 1989 Recommended Dietary Allowances (RDA) for most of the selected nutrientsvitamins A, C, and 86; folate; and iron. 8 Table 3. College students' mean dietary intakes 1 and percent Recommended Dietary Allowances (ADA) of selected nutrients, compared w1th the 1989 ADA Dietary intake Nutrient Males Females Mean ± SEM (% RDA) Vitamin A (RE) Vitamin C (mg) Vitamin 86 (mg) Folate (meg) Iron (mg) Calcium (mg) 1642.0 ± 468 (1 69) 1363.0 ± 352 (170) 184.0 ± 49 (307) 138.0 ± 16 (231 ) 2.8 ± .22 (140) 2.5 ± .27 (167) 371 .0 ± 56 (1 86) 376.0 ± 59 (220) 19.6 ± 1.9 (1 94) 20.9 ± 3.0 (140) 1137.0 ± 150 (96) 827.0* ± 71 (70) 1 Paried ttests were used to compare means ( :t standard error of the mean). 'The value is significantly lower than the recommendation. Mean HEI and HEI Component Scores National average3 values were based on data obtained from the CSFII, 1994- 1996. The data for the students were collected in 1999. Compared with the national average, student scores for fruits, total fats, saturated fats, cholesterol, and variety were significantly higher, averaging about 1 to 2 points more (table 4). Compared with the national average HEI score (60.9 of a possible 100), the overall score for the female, rather than male, college students was significantly higher-69.3 versus 62.2 (table 5). The females also had significantly higher component scores for fruits, total fats, saturated fats, cholesterol, and variety. Males, however, had a significantly lower score for grains: 5.7 versus 6.6 (national average). HEI scores based on students' age were significantly higher than the national average (69.9 vs. 61.1 for younger students and 65.5 vs. 60.8 for older students) as were scores for total fats and saturated fats. Whereas the national 3This average is deri ved from a population with similar distributions of age and gender as those of the college students. average HEI scores for total fats and saturated fats were 7.0 and 6.3, respectively, the students' scores, based on their age, for total fats ranged from 8.7 to 9.0; their scores for saturated fats ranged from 8.2 to 8.4. Younger students had higher mean scores for each of the five food groups, compared with older students, but older students had higher cholesterol scores. With total HEI scores of 66.5 to 68.0, science and nonscience majors' scores, respectively, surpassed the national by 5.4 to 7.9 points. Nonscience majors had a higher mean HEI score than did science majors because of higher scores (0.2 to 1.5 points) for grains, vegetables, meat, and variety. Sodium scores were generally lower (but not significantly) for all groups studied, compared with the national average, except for those of science majors and females. Sodium scores ranged from 4.0 to 6.6; the national average was 6.1. Sodium intake may be related to the type of snack, as well as the mix of foods, consumed by these students. For example, lowfat grain snacks are often salty but promoted as a healthful food choice. Meals at fastfood restaurants may also make appreciable contributions to sodi um intake. Family Economics and Nutrition Review Table 4. Mean HEI and component scores of college students, compared with a national average 1 HEI National College students component average (n=100) Total HEI 60.9±.10 67.2 ± 1.25 Grains 6.6 ± .03 6.6 ± .29 Vegetables 5.9 ± .02 6.5 ± .38 Fruits 3.2 ± .02 4.2 ± .40* Milk 4.7 ± .03 4.4 ± .35 Meats 6.2 ± .08 6.0 ± .36 Total fats 7.0 ± .01 8.8 ± .26* Saturated fats 6.3 ± .01 8.3 ± .32* Cholesterol 7.9 ± .09 8.9 ± .28* Sodium 6.1 ± .14 5.8 ± .42 Variety 7.1 ± .02 7.9 ± .31** 1Scores are for a population with age and gender distributions that are similar to those of the sample. *Scores are significantly different from the national average, P< 0.01. **Scores are significantly different from the national average, p< 0.05. While we did not analyze fat and saturated fat as a percentage of total food energy, scores indicated that the fat and saturated fat intakes of these students were lower than the national average. A translation of a score to actual percentage of fat is 31 .5 percent (score of 9.1) for females and 33 percent (score of 8.1) for males. Hertzler and Frary (1996) reported student fat intake ranges from 25 to 29 percent for females and males, respectively. Troyer et al. (1990) reported fat intake ranges from 34 to 36 percent. The lower intake of fat as a percentage of total kilocalories is consistent among students who select lower fat foods and have concerns about food and weight (Hertzler & Frary, 1996). The Dietary Guidelines for Americans, the Food Guide Pyramid, and the National Council's Diet and Health Report all stress the importance of variety in a healthful diet (USDA, 1995; National Research Council, 1989). As with the nutrients of moderation (total fats, saturated fats, and cholesterol), variety scores for 2002 Vol. 14 No. 1 students who were female, less than 20 years old, and nonscience majors were significantly higher than the national average (8.0, 8.3, and 8.4, respectively, vs. 7.1). Concerns about health and weight management commonly expressed by female students, possible younger students still living at home and eating with family members, and an increased awareness of nutrition and health issues by non-nutrition students may be factors contributing to their dietary choices and the subsequent overall HEI and component scores seen here. Limitations of Study The limitations of this study relate to the samples, dietary assessment, and the IHEI food database. We compared 1999 college students' HEI scores with those based on a 1994-1996 national average; hence, the differences in scores may not represent a true change in dietary intakes. Because we used a convenience sample, the subjects in this study may not have been representative of other college students. Thus, selection bias may have affected our results, and our findings may not be geographically representative of college students living in the general university community. In particular, because ethnic minorities were underrepresented in this sample, care should be used in extrapolating the findings of this study to other college populations or to young adults in general. One-day dietary records were used to assess dietary intakes: such data may be poor indicators of a person's usual diet, but a 1-day dietary record is a generally acceptable means of characterizing a group's intake when the sample size is sufficient (Basiotis, Welsh, Cronin, Kelsay & Mertz, 1987; Levine & Guthrie, 1997). The use of a 1-day dietary record, however, may not reflect a person's normal eating pattern. When providing dietary information, survey respondents tend to both underreport consumption of certain foodsespecially those high in fat and calories-and overreport consumption of other foods-such as those high in nutrients. Pertinent to this study is the possible omission of some foods consumed by college students, including high-protein and sports-type drinks. These foods are not in the foods database of the IHEI. The IHEI used in this pilot study was a prototype, and its application was evaluated by the students. Some aspects of the IHEI program were identified as needing improvement. In particular, the types and number of food choices were somewhat limited. Future work on the IHEI design will include an updated food database that includes many more frequently consumed foods, as well as the addition of a physical activity component. 9 Table 5. Mean HEI and component scores of college students, by selected characteristics HEI Gender Age Major1 component Male Female <20 years ;::20 years Science Nonscience HEI 62.2 ± 2.1 69.3 ± 1.5* 69.9 ± 1.9* 65.5 ± 1.6* 66.5 ± 1.7* 68.0 ± 1.8* Grains 5.7 ± .61* 6.9 ± .31 6.8 ± .45 6.4 ± .37 6.5 ± .34 6.7 ± .49 Vegetables 6.8 ± .71 6.3 ± .46 6.8 ± .58 6.2 ±.51 5.8 ±.55 7.3 ±.51 Fruits 3.4 ± .71 4.6 ± .48** 4.9 ± .68** 3.8 ± .49 4.2 ±.55 4.2 ±.59 Milk 4.9 ± .72 4.2 ± .39 4.5 ± .55 4.4 ± .46 4.4 ± .46 4.4 ±.54 Meats 7.8 ±.57 5.2 ± .42 6.4 ± .60 5.7 ± .45 5.4 ± .51 6.8 ± .48 Total fats 8.1 ±.58 9.1±.28* 9.0 ± .35* 8.7 ± .37* 9.0 ± .30* 8.5 ± .47* Saturated fats 7.5 ± .70 8.6 ± .33* 8.4± .51* 8.2 ± .40* 8.4 ± .39* 8.1 ±.51* Cholesterol 6.7 ± .79 9.9± .10* 8.8 ± .47 9.0 ± .36* 9.0 ± .36* 8.8 ± .45* Sodium 4.0 ± .78 6.6 ± .47 6.1 ± .61 5.6 ±.57 6.6 ±.54 4.8 ± .63 Variety 7.3 ±.53 8.0 ± .38* 8.3 ± .48** 7.5 ± .40 7.2 ± .47 8.4 ± .36* 1Science majors: dentistry, engineering science, agricultural science and forestry, medicine, nursing, and pharmacy. Nonscience majors: arts and sciences, business and economics, creative arts, human resources and education, journalism, law, physical education, and social work. 'Scores are significantly different from a national sample with comparable characteristics, p< .01. "Scores are significantly different from a national sample with comparable characteristics, p< .05. n=100. Conclusions Current research on diet and chronic disease has been lacking in appropriate methods to evaluate overall diet quality. In this study, we used the IHEI to assess the quality of college students' diets. The IHEI proved to be an effective dietary assessment tool for this sample. As such, it should be a component of basic introductory nutrition courses because the information it provides will help educators tailor their courses. For example, analyses from the IHEI can help instructors address specific topics in their course curriculum. This tailoring of nutrition education to food habits and eating practices of subgroups of the college population should result in nutrition courses and education programs that are more meaningful. Ultimately, this type of nutrition education at the college level can result in many positive lifestyle changes that 10 can help achieve the goals of nutrition and health specified in the Dietary Guidelines for Americans (USDA, 2000) and in Healthy People, 2010 (DHHS, 2000). In addition, our findings and the methods used may serve as a basis for future research on diet quality and risks of related chronic diseases among college students as well as in other subgroups of the American population. Family Economics and Nutrition Review References Basiotis, P.P., Welsh, S.O., Cronin, F.J., Kelsay, J.L., & Mertz, W. (1987). Number of days of food intake records required to estimate individual and group nutrient intakes with defined confidence. The Journal of Nutrition 117(9):1638- 1641. Bowman, S.A., Lino, M., Gerrior, S.A, & Basiotis, P.P. (1998). The Healthy Eating Index 1994-96. CNPP-5. U.S. Department of Agriculture, Center for Nutrition Policy and Promotion. Douglass, J.S. (1998). Development of Healthy Eating Index Scores for the 1994- 96 USDA Continuing Survey uf Food Intakes by Individuals. f'.:-liqgton, VA: TASEnviron. Frazao, E. (1999). High costs of poor eating patterns in the United States. In E. Frazao (Ed.), America's Eating Habits: Changes & Consequences. Agriculture Information Bulletin No. 750. U.S. Department of Agriculture, Economic Research Service. Georgiou, C.C., Betts, N.M, Hoerr, S.L., Keirn, K., Peters, P.A., Stewart, B., et al. (1997). Among young adults, college students and graduates practiced more healthful habits and made more healthful food choices than did nonstudents. Journal of the American Dietetic Association 97(7):754-759. Harless, T., Koch, J., & Slapar, H. (1996). Diet and health among college students. HPER C511 Course for Epidemiology, pp. 1-17. Hertzler, A.A., & Frary, R.B. (1996). Family factors and fat consumption of college students. Journal of the American Dietetic Association 96(7):711-714. Hertzler, A.A. & Frary, R. (1992). Dietary status and eating out practices of college students. Journal of the American Dietetic Association 92(7):867-869. Kant, A.K. (1996). Indexes of overall diet quality: A review. Journal of the American Dietetic Association 96(8):785-791. Kennedy, E., Bowman, S., Lino, M., Gerrior, S., & Basiotis, P. (1999). Diet quality of Americans. In E. Frazao (Ed.), America's Eating Habits: Changes & Consequences. Agriculture Information Bulletin No. 750. U.S. Department of Agriculture, Economic Research Service. Kennedy, E.T., Ohls, J., Carlson, S., & Fleming, K. (1995). The Healthy Eating Index: Design and application. Journal of the American Dietetic Association 95( 10): 1103-1108. Levine, E., & Guthrie, J. ( 1997). Nutrient intake and eating patterns of teenagers. Family Economics and Nutrition Review 10(3):20-35. Mitchell, S.J. (1990). Changes after taking a college basic nutrition course. Journal of the American Dietetic Association 90(7):955-961. 2002 Vol. 14 No. 1 11 National Research Council, Committee on Diet and Health, Food and Nutrition Board. (1989). Diet and Health: Implications for Reducing Chronic Disease Risk. Washington, DC: National Academy Press. Schuette, L.K., Song, W.O., & Hoerr, S.L. (1996). Quantitative use of the Food Guide Pyramid to evaluate dietary intake of college students. Journal of the American Dietetic Association 96(5):453-457. Shah, Z., George, V.A., & Himburg, S.P. (1999). Computer-assisted education for dietetic students: A review of literature and selected software. Journal of Nutrition Education 31(5):255-261. Statistical Package for the Social Sciences. (1997). Version 9.0. Chicago, Ulinois: SPSS, Inc. Tavelli, S., Beerman, K., Shultz, J.E., & Heiss, C. (1998). Sources of error and nutritional adequacy of the Food Guide Pyramid. Journal of American College Health 47(2):77-82. Troyer, D., Ullrich, I.H., Yeater, R.A., & Hopewell, R. (1990). Physical activity and condition, dietary habits and serum lipids in second-year medical students. Journal of American College Health 9(4):303-307. U.S. Department of Agriculture, Center for Nutrition Policy and Promotion. (1996). The Food Guide Pyramid (slightly revised). Home and Garden Bulletin No.232. U.S. Department of Agriculture. U.S. Department of Agriculture and U.S. Department of Health and Human Services. (1995). Nutrition and Your Health: Dietary Guidelines for Americans (4th ed.). Home and Garden Bulletin No.232. U.S. Department of Agriculture. U.S. Department of Agriculture and U.S. Department of Health and Human Services. (2000). Nutrition and Your Health: Dietary Guidelines for Americans (5th ed.). Home and Garden Bulletin No.232. U.S. Department of Agriculture. U.S. Department of Health and Human Services. (2000). Healthy People, 2010. (Conference edition, in two volumes). Washington, DC. 12 Family Economics and Nutrition Review Helen H-C. Lee, PhD, CNS Food and Drug Administration Shirley A. Gerrior, PhD, RD U.S. Department of Agriculture Center for Nutrition Policy and Promotion 2002 Vol. 14 No. 1 Consumers of Reduced-Fat, Skim, and Whole Milks: Intake Status of Micronutrients and Dietary Fiber Data from the U.S. Department of Agriculture's Continuing Survey of Food Intakes by Individuals (CSFI I) 1989-91 were used to evaluate the intakes of vitamins, minerals, and dietary fiber by Americans (ages 2 years and older) who drank milk containing different levels of fat. Results show that people who drank reduced-fat or skim milk had sign1i:.:antly greater mean intakes of fat-soluble vitamins and carotene, water-soluble vitamins, minerals (except sodium), and dietary fiber, compared with people who drank whole milk. However, intakes of zinc and vitamin E (by males and females) and calcium (by females) did not meet 100 percent of the Recommended Dietary Allowances (RDAs), regardless of the type of milk consumed. Overall, those who drank skim milk had the most favorable micronutrient intakes. These results suggest that those individuals who chose to drink reduced-fat or skim milk also chose more micronutrient-dense foods, resulting in more healthful diets. Despite this improved dietary quality, intakes of foods rich in zinc, vitamin E, and calcium need to be encouraged, regardless of the type of milk consumed. S cientific evidence suggests that diet plays an important role in development of chronic diseases. In particular, excessive consumption of dietary fat has been implicated with increased risk of coronary heart disease and some types of cancer (National Research Council, 1989). To promote health and reduce risk of chronic diseases, dietary recommendations have been developed for Americans by the National Cancer Institute (Butrum, Clifford&Lanza, 1988), the U.S. Surgeon General (U.S. Department of Health and Human Services [DHHS], 1988), and others (Krauss et al., 1993). These recommendations are consistent with the Dietary Guidelines for Americans and the Food Guide Pyramid to reduce dietary intakes of total fat, saturated fat, and cholesterol; to moderate intakes of sugar, sodium, and alcohol; and to increase intake of dietary fiber (U.S. Department of Agriculture [USDA], 1992; USDA & DHHS, 1995). The Dietary Guidelines for Americans recommend that Americans choose a diet that provides no more than 30 percent of total calories from fat, less than 10 percent of total calories from saturated fat, and no more than 300 milligrams of cholesterol per day. Dietary fat intake as a percentage of total calories has declined over the past 20 years. In 1977-78, intake of dietary fat was about 40 percent of energy (USDA, 1984). Intake of dietary fat as a percentage of energy decreased to 36 and 37 percent in 1985-86, 34 percent in 1989-91, and 33 percent in 1994-96(Tippettetal., 1995; USDA, 1986,1987, 1997). Along with this decrease, saturated fat also decreased as a percentage of energy-from 13 percent in 1985-86 to 11 percent in 1994- 96(USDA, 1986,1987, 1997).During 13 this time, daily grams of fat intake also decreased untill991 when its intake increased but remained below earlier levels. Since 1991, daily grams offat intake have remained steady or increased depending on the population subgroup studied (Anand & Basiotis, 1998; Morton & Guthrie, 1998). Nonetheless, the overall decrease in dietary fat over the past 20 years has been achieved, in part, by consumption of a variety of lower fat foods and fatmodified products (Buzzard et al., 1990; Gorbach, 1990; Lee, Gerrior & Smith, 1998; Peterson, Sigman-Grant, Eissenstat & Kris-Etherton, 1999; Wirfalt&Jeffery, 1997). From analyzing the nationwide food intake database of the Continuing Survey of Food Intakes by Individuals (CSFII) 1989-9l,Leeetal. (1998) reported that total fat intake of people who drank skim milk and reduced-fat milk' was significantly (p~0.05 ) lower than those who drank whole milk. Thus, the dietary goal of not more than 30 percent of caloric intake from total fat was achieved by several age groups that drank skim milk. This dietary goal was not achieved by any age groups of whole milk or reduced-fat milk drinkers. The authors found that people who drank reduced-fat and skim milks consumed more fruits and vegetables and less meat, compared with people who drank whole milk. A number of other studies also showed that inclusion of lower fat food choices-such as lower fat dairy products, leaner meats, and fat-modified bakery products-lowered intakes of total fat, saturated fat, and cholesterol and affected the micronutrient profile of the diet (Buzzard et al., 1990; Gorbach etal., 1990; Peterson et al., 1999; Wirfalt 1The term "reduced fat" as used in thjs paper includes reduced-fat milk (2%) and lowfat rllilk (1%). 14 & Jeffery, 1997). Two studies that examined food intakes and dietary patterns reported that as dietary fat intake decreased, intakes of reduced-fat milk, vegetables, fruit, cereals, fish, and chicken increased and intakes of whole milk and cheese, salty snacks, peanuts, red meats, eggs, desserts, and fried potatoes decreased (Gorbach et al., 1990; Subar, Ziegler, Patterson, Ursin & Graubard, 1994). The use of a fatreduction strategy appears to be associated with distinctively different food choices, and it has been suggested that people who choose food consistent with fat reduction make more conscious food choices that result in a morehealthfu1diet(Leeetal., 1998; Peterson eta!., 1999). Fluid milk has provided the consumer lower fat milk options for many years and is an integral part of the American diet. One popular strategy to lower the intake of dietary fat is the use of reduced-fat or skim milk in place of whole milk in the diet. In 1994, consumption of milk and milk products contributed about 12 percent of total fat and 6 percent of saturated fat to the U.S. food supply (Gerrior & Bente, 1997). Of this, wholemilk(with a38- percent share of the market) contributed 2.0 percent of the total fat and 3.8 percent of the saturated fat; reduced-fat and skim milks combined (62-percent share) contributed 1.5 percent of the total fat and 2.8 percent of the saturated fat (Gerrior & Bente, 1997). Milk and milk products also make important nutrient contributions to the diet. Along with providing high-quality protein, they are good sources of vitamins (A, D, B 12, and riboflavin) and minerals (calcium, phosphorus, magnesium, potassium, and zinc). Studies examining the effect of lower fat food choices on the nutritional profiles of the diet reported that adults who drank skim milk had significant! y higher intakes of vitamin A, vitamin B6 and magnesium, compared with users of higher fat milk (Peterson et al., 1999; Wirfalt&Jeffery, 1997). Understanding the effect of the use of milks on intakes of micronutrients and dietary fiber is important-considering the valuable nutrient contributions of fluid milk, its possible role in lowering the risk of osteoporosis, and the decreasing trend in consumption of fluid milk by Americans (Gerrior, Putnam & Bente, 1998). The purpose of this study was to evaluate the intakes of vitamins, minerals, and dietary fiber by Americans, 2 years and older, who drink different types of milk. 2 Survey and Methods This study used data from the CSFII, conducted by the U.S. Department of Agriculture (USDA) between 1989 and 1991 with a national stratified sample ofl5,128 individuals residing in the48 conterminous States and Washington, DC. Persons who were living away from home or in institutions were ineligible. The stratification took into account geographic location, degree of urbanization, and socioeconomic considerations. The survey used 1-day 24-hour recalls from an in-person interview and a 2-day dietary record. Detailed methods of the survey were published previously (Tippett et al., 1995). The present study used basic- or all-income data from respondents, aged 2 years and older, with a complete 3-day dietary intake. Excluded from the analysis were respondents who reported no food intake. The nutrient database used to 2For a report on energy compensation, energy-yeilding nutrient intakes, and foodgroup intakes by consumers of different types of milk in the present study population, see Peterson et al. ( 1999). Family Economics and Nutrition Review Table 1. Mean intakes of vitamins by males, by age and milk type1 Age and Vitamin A Carotene Vitamin E Thiamin Riboflavin Niacin Vitamin B6 Folate Vitamin B12 Vitamin C milk type (RE) (RE) (alpha·TE) (mg) (mg) (mg) (mg) (1-1-9) (1-1-9) (mg) ~2 years Whole 1004a 3goa o.a7a 1.72a 2.13a 23.1a 1.82a 272a 6.ooa g1a (41) (27) (0.24) (0.03) (0.04) (0.4) (0 .03) (6) (0.27) (2) Reduced-fat 1246b 476b g,77b ugb 2.31b 24.6b 2.02b 307b 6.1oa 104b (35) (24) (0.36) (0.03) (0.04) (0.4) (0.04) (7) (0.22) (3) Skim 1375b 57gc 10.05b 1.82b 2.2oab 24 .gb 2.10b 330C 6.2ga 125c (113) (54) (0.7) (0.07) (0.08) (O,g) (0.08) (14) (O.g5) (6) 20- 50 years Whole 1036a 460a 8.7aa 1.83a 2.2oa 26.1a 2.g6a 2aoa 6.14a goa (61) (4g) (0.40) (0.05) (0.07) (0.7) (0.06) (11) (0.27) (4) Reduced-fat 11g3 436a 10.60b 1.g2a 2.44b 27.5a 2.18b 31aab 6.7oa ggb (50) (33) (0.64) (0.05) (0 .07) (0.7) (0.06) (11) (0.37) (4) Skim 1231b 4aoa 11.75b 2.06a 2.43ab 27.7a 2.23b 356b 5.g5a 128C (7g) (66) (1 .16) (0.12) (0.12) (1.4) (0.12) (22) (0.37) (11) 51 - 64 years Whole 1186a 5gaa 8.66a 1.66a 2.ooa 23.oa 1.83a 266a o.o3a 81a (148) (134) (o.ga) (o.og) (0.12) (1.2) (o.og) (11) (0.54) (6) Reduced-fat 1437b 70gb 11.20b 1.76a 2.14a 25.ga 2.17b 324b 6.o5a 118b (105) (85) (1 .og) (0.07) (0.08) (0.8) (o.og) (18) (0 .41) (8) Skim 132gb 57aab g,15ab 1.65a 2.ooa 24.5a 2.14b 326b 5.7aa 12gb (146) (110) (1.52) (0.10) (0.12) (1 .3) (0 .14) (27) (0.63) (13) ~65 years Whole 1386a 423a 7.3ga 1.63a 2.04a 21.6a 1.83a 2goa a.a5a ega (227) (41) (0.52) (0.07) (0.12) (0.8) (o.og) (15) (2 .21) (6) Reduced-fat 1663a 708b 11 .31b 1.87b 2.2aa 24.6b 2.1ga 344b 7.01a 126b (132) (61) (1.1g) (0.08) (0.12) (1.0) (0.11) (21) (O,g3) (13) Skim 2120a gg6b g,7aab 1.64ab 2.15a 22.6ab 2.15a 333b g.7oa 134b (528) (165) (1.11) (0.10) (0.23) (1 .6) (0.16) (27) (4,g6) (10) 1Standard erro~ of me~n in parentheses. For each vitamin, values with different superscript letters in the same age group are significantly different at p<0.05. Source: USDAs Contmumg Survey of Food Intakes by Individuals (CSF/1), 1989-91, 3-day intake data. - estimate intakes of various nutrients was developed by the USDA for use in tills survey by using the USDA National Nutrient Data Base for Standard Reference and the USDA Nutrient DataBank (1992). Data were weighted to reflect the general population. Each gender was placed in one of five groups based on its milk consumption: no milk, whole milk, reduced-fat milk, skim milk, and mixed milk. Each group was also placed in a category based on age: 2 to 5 years (representing toddlers and preschoolers), 6 to 11 years (schoolchildren), 12 to 19 years (teenagers), 20 to 50 years (adults), 2002 Vol.14No.l 51 to 64 years (middle aged), and 65 years and older (elderly).lntak:es of food groups by people who drank whole, reduced-fat, and skim milk were previously reported (Lee et al., 1998). Statistical Analysis We calculated estimates of the mean and standard error of the means (SEMs) by using Survey Data Analysis (SUDAAN), a statistical program designed for complex, stratified sampling that is used to collect survey data (Shah, Barnwell, Hunt & La V ange, 1991). SUDAAN is recommended by USDA for statistical tests of signifi-cance on weighted data from its surveys (USDA, 1989). We also used Statistical Analysis Software (SAS) to analyze the data (SAS Institute, Inc., 1990). If the F test, by analysis of variance (ANOV A), showed a significant difference, Scheffe's t test (Scheffe, 1953) was used for pair-wise comparisons between groups at the 5-percent, two-tailed probability level. The resulting comparisons between the no-milk group or the mixed-milk group and the other milk groups showed inconsistent and insignificant differences. Therefore, this paper reports only the comparisons among three groups of milk drinkers: whole milk, reduced-fat milk, and skim milk. 15 Table 2. Mean intakes of vitamins by females, by age and milk type1 Age and Vitamin A Carotene Vitamin E Thiamin Riboflavin Niacin Vitamin B6 Folate Vitami n B12 Vitamin C milk type (RE) (RE) (alpha-TE) (mg) (mg) (mg) (mg) (t-<9) (t-<9) (mg) ?.2 years Whole 8188 3368 6.178 1.348 1.678 17.88 1.458 2228 4.268 838 (26) (16) (0.12) (0.02) (0.03) (0.2) (0.02) (4) (0.17) (2) Reduced-fat 983b 411b 6.77b 1.31• 1.69b 18.1b 1.5Qb 231b 4.288 86b (22) (15) (0.16) (0.02) (0.02) (0.2) (0.02) (4) (0.14) (2) Skim 1241C 67QC 8.11c 1.40b 1.6aab 19.6C 1.69c 27QC 4.108 1Q5C (71) (66) (0.49) (0.04) (0.04) (0.5) (0.05) (9) (0.17) (4) 20- 50 years Whole 8168 3438 6.sa• 1.328 1.598 18.58 1.438 2138 4.ss• so• (52) (26) (0.23) (0.03) (0.05) (0.4) (0.04) (7) (0.40) (3) Reduced-fat 946b 391b 7.11 8 1.31 8 1.68b 19.08 1.498 2288 4.41 8 82ab (32) (23) (0.26) (0.03) (0.03) (0.4) (0.03) (6) (0.26) (3) Skim 1152" 591c 8.30b 1.43b 1.70b 19.7b 1.93b 261b 4.168 gsb (20) (117) (0.57) (0.05) (0.06) (0.6) (0.13) (12) (0 .22) (6) 51 - 64 years Whole 8878 4258 5.468 1.268 1.468 17.28 1.388 2178 4.158 878 (71) (59) (0.27) (0.05) (0.05) (0.7) (0.06) (12) (0.42) (93) Reduced-fat 1092b 5348 6.96ab 1.31• 1.57ab 19.1b 1.59b 2458 4.298 938 (64) (41) (0.40) (0.04) (0.06) (0.6) (0.07) (10) (0.26) (5) Skim 1450C 780b 9.00b 1.478 1.80b 21.sc 1.93c 307b 4.91 8 128b (151) (127) (1.65) (0.12) (0.12) (1.2) (0.14) (28) (0.53) (12) ?.65 years Whole gsa• 5138 5.91 8 1.208 1.478 15.68 1.368 2178 3.628 848 (67) (60) (0.30) (0.04) (0.04) (0.4) (0.04) (8) (0.24) (5) Reduced-fat 1134b 531 8 7.ogab 1.2aab 1.6Qb 17.4b 1.56b 241b 4.708 1QQb (56) (30) (0.37) (0.03) (0.04) (0.5) (0.05) (7) (0.42) (4) Skim 1349b a sob 7.58b 1.30b 1.54ab 18.1b 1.63b 266b 3.3o• 111b (102) (93) (0.60) (0.05) (0.17) (0.7) (0.07) (14) (0.20) (7) 1Standard error of mean in parentheses. For each vitamin, values with diHerent superscript letters in the same age group are significantly different at p5_0.0S. Source: USDA's Continuing Survey of Food Intakes by Individuals (CSF/1), 1989-91, 3-day intake data. fat milks in the older age groups. A or skim milk, as well as between those Results detailed description and analysis of who drank reduced-fat milk versus the study population were reported skim milk. Analysis of possible gender Study Population previously (Lee et aL, 1998). differences showed that for both Fifty-six percent of the study popula- genders the significant difference in tion (n=l0,759) were females. Over the Intakes of Fat-Soluble Vitamins fat-soluble vitamins among the various 3-day period, about one-third of the For both the males and females (age 2 groups of milk drinkers occurred mostly population consumed whole milk (34 and older), intakes of vitamins A and E in the adult groups (ages 20 and older). percent) or reduced-fat milk (31 per- and carotene were highest among those cent); 7 percent, skim milk; 9 percent, who drank skim milk, followed by those Intakes of Water-Soluble Vitamins mixed types of milk; and 19 percent, no who drank reduced-fat milk, and then For both males and females, ages 2 milk. Generally, fewer people drank milk whole milk (tables 1 and 2). For males, and older, intakes of niacin, vitamin B6, as their age increased. Compared with the difference in intakes of these fat- folate, and vitamin C were significantly other age groups, the 20- to 50-year-old soluble vitamins and carotene was lower for those who drank whole milk group was more likely not to drink milk; significantly different between those than for those consuming reduced-fat toddlers and preschoolers were more who drank whole milk and those who and skim milk (tables 1 and 2). Intakes likely to drink whole milk. The con- drank reduced-fat milk or skim milk. For of these four nutrients by females as sumption of skim milk increased for females, the difference was statistically well as intakes of fo late and vitamin C older children, indicating a shift in significant between those who drank by males were significant! y lower for preference from whole milk to lower whole milk, compared with reduced-fat those drinking reduced-fat milk than for 16 Family Economics and Nutrition Review Table 3. Mean intakes of minerals by males and females age 2 and over, by milk type1 Gender and type of milk Calcium Phosphorus Magnesium Iron Zinc Copper Potassium Sodium consumed (mg) (mg) (mg) (mg) (mg) (mg) (mg) (mg) Males Whole 905a 1362'1 266a 15.38 12.58 1.1ga 26948 365(11 (21) (25) (5) (0.3) (0.3) (0.04) (46) (65) Reduced-fat 98~ 1415b 292> 16.? 13.2b 1.2? 2871' 361ga (16) (18) (4) (0.3) (0.4) (0.02) (42) (53) Skim 96rJl 1~ 310C 16.9b 12.gab 1.3?C 307ff 3646a (36) (44) (9) (0.7) (0.5) (0.05) (84) (176) Females Whole 71?8 1052'1 2118 1.88 9.18 0.92'1 216()3 26838 (13) (15) (3) (0.2) (0.1) (0.01) (27) (41) Reduced-fat 745ab 105ga 22rJl 12.6b 9.1 8 0.99b 223Jb 245Jb (11) (12) (3) (0.2) (0.1) (0.01) (26) (29) Skim 75fP 1105b 2~ 13.6c 9.8b 1.ogc 248~ 237fP (20) (21) (6) (0.5) (0.3) (0.03) (46) (59) 1Standard error of mean in parentheses. For each mineral, values with different superscript letters in the same gender group are significantly different at p~0 . 05 . Source: USDA's Continuing Survey of Food Intakes by Individuals (CSF/1), 1989-91, 3-day intake data. those drinking skim milk. Intakes of thiamin were also significantly lower for the males who drank whole milk, compared with males who drank reduced-fat or skim milk; the same was the case for females who drank whole milk or reduced-fat milk, compared with females who drank skim milk (tables 1 and 2). The analysis of the age groups revealed that the significant difference in intakes of water-soluble vitamins according to milk type occurred among adult age groups for both males and females (tables 1 and 2). Intakes of watersoluble vitamins (including thiamin, riboflavin, niacin, vitamin B6, folate, vitamin B 12, and vitamin C) were significantly lower for those who drank whole milk, compared with those who drank reduced-fat or skim milk. This finding was consistent for most adult male and female age groups (20 years and older), but not for younger age groups (data not shown). For male age groups, intakes of water-soluble vitamins between consumers of 2002 Vol.l4No.1 reduced-fat and skim milk were not significantly different. However, for certain female age groups, intakes of several vitamins, including niacin, folate, vitamin B6, and vitamin C, were significantly greater for consumers of skim milk, compared with reduced-fat milk. Intakes of Minerals For both genders, ages 2 and older, consumers of whole milk, compared with consumers of reduced-fat milk or skim milk, had significantly lower intakes of all the minerals analyzed, except for sodium for males and zinc for females (table 3). Sodium intake was not significantly different based on the types of milk consumed by males but was significantly reduced for females who drank lower fat milk. In the same age category (ages 2 and older), intakes of the minerals magnesium, copper, and potassium were significantly lower for males who drank reduced-fat milk, compared with males who drank skim milk (table 3). However, among females, intakes of all the dietary essential minerals studied, except for sodium, were significantly lower among those consuming whole milk, compared with those drinking skim milk. These significant increases in intakes of minerals by those drinking skim milk, compared with those drinking higher fat milk, occurred mostly in the adult age groups (ages 20 and older) of females (table 3). Intakes of Dietary Fiber Those ages 2 and older who drank whole milk had significantly lower intakes of dietary fiber than their counterparts who drank reduced-fat or skim milk (table4). This significantly lower intake in dietary fiber by individuals of both sexes who drank whole milk occurred in two adult age groups (adult and elderly) but not in younger age groups. For several age groups, including elderly males as well as adult and elderly females, those who drank reduced-fat milk had significantly lower intakes of dietary fiber, compared with those who drank skim milk. 17 ... people who drank reduced-fat or skim milk had significantly greater mean intakes of fat-soluble vitamins and carotene, water-soluble vitamins, minerals (except sodium), and dietary fiber, compared with people who drank whole milk. 18 Table 4. Mean intake of dietary fiber (in grams) by males and females, by age and type of milk consumed1 Age and milk type Male Female ?.2 yrs Whole 14.2'1 11 .3a (0.3) (0.2) Reduced-fat 15.7b 12.1b (0.3) (0.2) Skim 18.0C 14.5c (0.7) (0.4) 2-S yrs Whole 8.0 8.3 (0.3) (0.3) Reduced-fat 10.0 9.2 (0.5) (0.4) Skim 9.8 9.9 (1.1) (0.7) 20-SOyrs Whole 15.4 11.3a (0.5) (0.3) Reduced-fat 17.1 12.ob (0.5) (0.3) Skim 19.2 14.1C (1.2) (0.6) ?.65 yrs Whole 14.9a 11 .3a (0.7) (0.4) Reduced-fat 17.9b 13.2b (0.6) (0.4) Skim 20.3C 14.9C (1.5) (0.6) 1Standard error of mean in parentheses. Values with different superscript letters in the same gender-age groups are significantly different at p~0.05. Source: USDA's Continuing Survey of Food Intakes by Individuals (CSF/1), 1989-91, 3-day intake data. Percentage of the 1989 Recommended Dietary Allowances Met For males and females, intakes of vitamins by those ages 2 and older met or exceeded the 1989 RD As (National Academy of Sciences, 1989). The exceptions were vitamin E for both men and women, and vitamin B6 for women only (table 5). For vitamins in general, people who drank reduced-fat and skim milk met a greater percentage of the RDAs than did people who drank whole milk, exceeding 100 percent of the RDAs. Compared with others, those drinking skim milk alsometatleast 100 percent of the RDAs for vitantins E and B6, reflecting higher intakes of these nutrients. Interestingly, those who drank whole milk met a greater percentage ofRDA for vitamin B 12 , compared with those who drank lower fat milk. Males 2 years and older met or exceeded the RDAs for some of the minerals studied: calcium, phosphorus, and iron. They generally met the RDA for magnesium but failed to meet 100 percent of the RDA for zinc (table 6). Females 2 years and older exceeded the RDA for phosphorus only-thus failing to meet 100 percent of the RDAs for zinc, calcium, or magnesium for all three milk categories. Iron intake was below 100 percent of the RDA for women drinking whole milk but exceeded the RDA for those drinking reduced-fat and skim milk. In general, when people drank reduced-fat and skim milk, they met a significantly higher percentage of the RDAs for calcium, phosphorous, and iron than did people who drank whole milk. Discussion Our results indicate that the choice of milk people consumed significantly affects their intakes of essential micronutrients. In general, compared with people who drank whole milk, those who drank reduced-fat and skim milk had significantly higher intakes offat-soluble vitamins (A, E, and carotene3), water-soluble vitamins (thiamin, riboflavin, niacin, vitantin B6, folate, vitamin B 12, and vitamin C), minerals (calcium, phosphorus, 3Carotene is the precursor to vitamjn A. Although not technically a vitamin, it is often measured as a predictor of vitamin A availability or activity. Family Economics and Nutrition Review Table 5. Vitamin intake as a percentage of Recommended Dietary Allowances by males and females age 2 and over, by type of milk consumed1 Gender and milk type Vitamin A Vitamin E Thiamin Riboflavin Niacin Vitamin B6 Folate Vitamin B12 Vitamin C Male Whole 113'3 84a 135a 145a 14oa 103a 17ga 345a 165a (3) (2) (2) (2) (2) (1) (3} (11) (3} Reduced-fat 13gb 1Q3b 103a 155b 148b 111b 1W 33~ 18? (3) (3} (2) (2) (2) (1} (3} (8) (4) Skim 143b 1Q2b 13~ 144ab 148b 1oot> 178a 323'3 21SC (8} (5) (3} (4) (3} (3) (5) (34) (7) Female Whole 11~ soa 1soa 13~ 1~ gga 164a 255a 15~ (3) (1} (1} (2} (1) (1) (3) (7) (3) Reduced-fat 1~ 86b 125b 136a 12ga gsa 15oa 236b 15oa (2) (1) (1} (1) (1) (1) (2) (5) (2} Skim 155c 100C 133'! 134a 13gb 1Q6b 154a 2ogb 176b (6) (4) (3} (2) (2} (2} (4) (6} (5) 1 Standard error of mean in parentheses. For each micronutrient, values with different superscript letters in the same gender are significantly different at ps0.05. Source: USDA's Continuing Survey of Food Intakes by Individuals (CSF/1), 1989-91, 3-day intake data. magnesium, iron, zinc, copper, and potassium), and dietary fiber. People consuming skim milk had the most favorable profiles regarding the intakes of micronutrients. These findings are consistent with previous reports. Peterson eta!. (1999) evaluated fatreduction strategies and subsequent micronutrient intakes and reported that, compared with users of higher fat milk, men and women who used skim milk exclusively had improved intakes of vitamin A, vitamin B6, and magnesium. Only females who used skim milk exclusively had improved intakes of vitamin E, iron, calcium, and zinc. Another study (Wirfalt & Jeffery, 1997) showed that users of skim milk, rather than nonusers, had higher intakes of dietary fiber, calcium, vitamin C, iron, and vitamin A. In our study, the differences in micronutrient intakes among those consuming different types of milk were more obvious among females than among males. The analysis based on people's age revealed that the statistical significance in intakes of micronutrients among those drinking 2002 Vol. 14 No.1 different types of milk occurred among adults ages 20 and older. Studying the same population as used here, Lee eta!. (1998) reported that those who drank reduced-fat milk consumed more fruits, vegetables, and seasoning fats and oils. The observed favorable intake of micronutrients and dietary fiber by people who drank reduced-fat milk is likely linked to the larger amounts of total vegetables and fruits consumed by those who drank reduced-fat and skim milk, compared with their counterparts who drank whole milk (table 1). This increased consumption of vegetables and fruits by people who drank lower fat milk may have contributed to the significantly higher intakes of vitamins C, folate, magnesium, iron, potassium, copper, and dietary fiber in the diets of those who drank reduced-fat and skim milk. Also, the higher intakes of vitamin Erich seasoning fats and the use of margarine and reduced-fat and skim milk (fortified with vitamin A) may have contributed to the improved intakes of vitamins E and A. The results of the present study and previously reported studies (Peterson etal., 1999; Wirfalt& Jeffery, 1997) suggest that the use of skim milk could be a simple indicator of a healthful diet. Basically, Americans who drink skim milk appear to be making additional conscious food choices that reflect a concern for fat intake and an interest in a varied and balanced diet. The improved micronutrient profile, significantly lower intakes of red meat, and significantly higher intakes of vegetables and fruit by those who drank skim milk indicate two things: ( 1) a tendency to select more healthful food items and (2) a likelihood of having food intake patterns closer to dietary guidance (Gorbach et al., 1990; Peterson eta!., 1999;Subaretal., 1994). Dietary intake status for zinc has been considered a potential health issue in the United States (Federation of American Societies for Experimental Biology, 1995). For each type of milk drinker, 2 years old and older, intake of dietary zinc was at 77 to 93 percent of the RDA (table 6). Data from the 19 People consuming skim milk had the most favorable profiles regarding the intakes of micronutrients. 20 Table 6. Mineral intake as a percentage of Recommended Dietary Allowances by males and females age 2 and over, by type of milk consumed1 Gender and milk type Calcium Phosphorus Magnesium Iron Zinc Male Whole 1()3'1 155a gga 14ga goa (2) (2) (1) (2) (2) Reduced-fat 11~ 1EJSb 104b 163b 9~ (1) (2) (1) (2) (2) Skim 115b 171b 96a 168b aaab (3) (3) (2) (5) (2) Female Whole aoa 118'1 96a 94a 78a (1) {1) (2) (1) {1) Reduced-fat 86b 123b 94a 101b na (1) (1) (1) (1} (1) Skim agb 130C gsa 111c 81 (2) (2) (2) (3) (2) 1Standard error of mean in parentheses. For each micronutrient, values with different superscript letters in the same gender are significantly different at ps_0.05. Source: USDA's Continuing Survey of Food Intakes by Individuals (CSF/1), 1989-91, 3-day intake data. USDA's CSFII 1989-91 indicate that women and men consumed only 75 and 89 percent, respectively, of the RDA for zinc. The population needs to be encouraged to choose foods high in bioavailability and content of zinc. These foods include red meats (beef, pork, and veal), poultry, oysters, and dairy products. Fish, cereal, whole grain products, legumes, and beans have less zinc content. Also, the presence of phytates in whole grains negatively affects its bioavailability (Bosscher et al.,2001). Vitamin E intake was lower for people who consumed whole milk, compared with those who consumed reduced-fat or skim milk. As previously reported, those who drank reduced-fat and skim milk consumed significantly higher amounts of seasoning fats and oils, which we believe are linked to the higher intakes of vitamin E, as found in this study (Lee et al., 1998). Nevertheless, males and females who drank whole milk as well as females who drank reduced-fat milk met only 80 to 86 percent of the RDA for vitamin E-a finding that indicates that vitamin E needs to be targeted in U.S. nutrition education efforts. Foods rich in vitamin E are vegetable oils, dark-green leafy vegetables, nuts, whole grain cereals, fortified cereals, and eggs. Calcium intake is considered a current public health concern. Recent findings indicate that food selection practices in the United States make it difficult to meet calcium needs without having milk and milk products in the daily diet (Gerrior et al., 1998). The present study shows that calcium intake needs to improve among all people, regardless of the type of milk consumed. Consuming adequate amounts of lower fat milk and dairy products-such as skim milk or nonfat yogurt-that are as high or higher in calcium as whole milk (Gerrior et al., 1998) could be a good means for improving the intake of dietary calcium. These findings indicate that a lower fat diet does not necessarily ensure a nutritionally optimal diet. These findings also emphasize the importance Family Economics and Nutrition Review of a balanced diet-one that follows the guidance of the Dietary Guidelines for Americans and the Food Guide Pyramid. Additional studies, with more recent data, that include a focus on greater variety of fat-modified food products are needed to better understand how Americans incorporate reduced-fat foods into their diets and how these food choices affect nutritional status. This understanding is necessary to target more effective nutrition education efforts that improve diet quality and the overall health of Americans. Limitations Survey Data The data used in this study, as with any survey data, should be interpreted with appropriate care. Dietary surveys are subject to nonresponse errors, respondent errors (such as underreporting), coding and processing errors, and limitation of nutrient data. For example, the individuals included in the 1989-91 CSFll sample may not be representative ofthe general U.S. population. Also, compared with other days, fewer CSFll interviews were conducted on Sunday. Thus, percentages of acceptable dietary forms collected were lower for Saturday (day-1 recall), Sunday (day-2 record), and Monday (day-3 record). Weighting survey results can reduce the potential for nonresponse bias. We weighted the results of this study, and we included the interview data as a control variable. The nutrient database developed for the CSFII and used for our study reflected up-to-date nutrient information at the time the CSFll was conducted. Also, most of its nutrient values included in the database are supported by laboratory analyses, but analytical data are not always available. Hence, values are sometimes imputed. 2002 Vol. 14 No. 1 RDA versus DRI Adopted by the Food and Nutrition Board of the Institute of Medicine, Dietary Reference In takes (D Rls) represent the new approach to providing quantitative estimates of nutrient intakes for use in a variety of settings. Hence, the DRis replace and expand on the past 50 years of periodic updates and revisions of the RDAs. The DRis differ in amounts and age categories from the 1989 RDAs. Along with the RDA category, the DRis include three new categories of reference values: Adequate Intake (AI), the Estimated Average Requirement (EAR), and the Tolerable Upper Level (UL) (Yates, Schlicker&Suitor, 1998). This study does not use the DRis in the calculation of nutrient intakes and nutrient analysis. Until expert guidance is published by the Food and Nutrition Board regarding the use of the appropriate DRI category for assessing the diets of individuals in large-scale dietary surveys, USDA continues to use the 1989 RDAs to analyze nutrients. While the DRis are published for the bone-related nutrients (calcium, phosphorus, magnesium, vitamin D, and fluoride) and are available for the B vitamins (folate, pantothenic acid, biotin, and choline), DRis for other nutrients have not been released. Thus for consistency in reporting of micronutrient intakes and evaluating nutrient status, we used the 1989 RDAs. Acknowledgment We appreciate Drs. Jacqueline Dupont (Florida State University) and P. Peter Basi otis (Center for Nutrition Policy and Promotion, USDA) for their help in installment of this research. We also thank Ms. Julie Smith (Agricultural Marketing Service, USDA) for her substantial assistance in analyzing the data. 21 22 References Anand, R., & Basi otis, P.P. (1998). Is total fat consumption really decreasing? Family Economics and Nutrition Review 11(3):58-64. Bosscher, D., Lu, Z., Janssens, G., Van Caillie-Bertrand, M., Robberecht, H., De Rycke, H., et al. (2001). In vitro availability of zinc from infant foods with increasing phytic acid contents. British Journal of Nutrition 86(2):241-247. Butrum, R.R., Clifford, C.K., &Lanza, E. ( 1988). National Cancer Institute dietary guidelines: Rationale. American Journal of Clinical Nutrition 48(suppl):888-895. Buzzard, I.M., Asp, E.H., Chlebowski, R.T., Boyar, A.P., Jeffery, R.W. , Nixon, D.W., et al. ( 1990). Diet intervention methods to reduce fat intake: Nutrient and food group composition of self-selected low-fat diets. Journal of the American Die£dic Association 90:42-50,53. Federation of American Societies for Experimental Biology, Life Sciences Research Offices. (1995). Third Report on Nutrition Monitoring in the United States. Vol. 1. Washington, DC: U.S. Government Printing Office. Gerrior S., & Bente L. (1997). Nutrient Content of the U.S. Food Supply, 1909-94. Home Economics Research Report No. 53. U.S. Department of Agriculture, Center for Nutrition Policy and Promotion. Gerrior, S .A., Putnam, J ., & Bente, L. ( 1998). Milk and milk products: Their influence in the American diet. FoodReview 21(2):29-37. Gorbach, S.L., Morrill-LaBrode, A., Woods,M.N., Dwyer,J.T., Selles, W.D., Henderson, M., et al. (1990). Changes in food patterns during a low-fat dietary intervention in women. Journal of the American Dietetic Association 90:802-809. Krauss, R.M., Deckelbaum, R.J., Ernst, N., Fisher, E. , Howard, B.V., Knopp, R.H., et al. (1996). Dietary Guidelines for Healthy American Adults. American Heart Association. A vail able at: http://www .americanheart.org/Scientific/statements/ 1996/1001/htrn. AccessedAprill3, 1999. Lee, H. H-C., Gerrior, S.A., & Smith, J.A. (1998). Energy, macronutrients, and food intakes in relation to energy compensation in consumers who drink different types of milk. American Journal of Clinical Nutrition 67:616-623. Morton, J., & Guthrie, J. (1998). Changes in children's total fat intakes and their food group sources of fat, 1989-91 versus 1994-95: Implications for diet quality. Family Economics and Nutrition Review 11(3):44-57. National Academy of Sciences, National Research Council, Food and Nutrition Board. (1989). Recommended Dietary Allowances (lQ'h ed.). Washington, DC: National Academy Press. Family Economics and Nutrition Review National Heart, Lung, and Blood Institute, National Institutes of Health. (1993). Expert Panel on Detection, Evaluation and Treatment of High Blood Cholesterol in Adults. (Adult Treatment Panel Il), Second Report. NIH Publication No. 93- 3095. Bethesda, MD. National Research Council. (1989). Diet and Health Implications for Reducing Chronic Disease Risk. Washington, DC: National Academy Press. Peterson, S., Sigman-Grant, M., Eissenstat, B., & Kris-Etherton, P. (1999). Impact of adopting lower-fat food choices on energy and nutrient intakes of American adults. Journal of the American Dietetic Association 99:177-183. SAS Institute, Inc. (1990). SAS Procedures Guide. Version 6. 3'd ed. Cary, NC: SAS Institute, Inc. Scheffe, H. (1953). A method for judging all contrasts in the analysis of variance. Biometrika40:87-104. Shah, B.V., Barnwell, B.G.,Hunt, P.N., &LaVange,L.M. (1991). SUDAAN User's Manual. Release 5.50. Research Triangle Park, NC: Research Triangle Institute. Subar,A.F.,Ziegler,R.G., Patterson,B.H., Ursin,G.,&Graubard,B. (1994). U.S. dietary patterns associated with fat intake: The 1987 National Health Interview Survey. American Journal of Public Health 84:359-366. Tippett, K.S., Mickle, S.J., Goldman, J.D., Sykes, K.E., Cook, D.A., Sebastian, R.S., et al. (1995). Food and Nutrient Intake by Individuals in the United States, 1 day, 1989-91. Continuing Survey of Food Intakes by Individuals, 1989-91 . Nationwide Food Surveys Rep. No. 91 -2. U.S. Department of Agriculture, Agricultural Research Service. U.S. Department of Agriculture, Agricultural Research Service. (1997). Data tables: Results from USDA 's 1994-96 Continuing Survey of Food Intakes by Individuals and 1994-96 Diet and Health Knowledge Survey. [On-line]. Available: http:// www.barc.iusda.gov/bhnrc/foodsurvey!home.htm. Accessed April6, 1999. U.S. Department of Agriculture, Human Nutrition Information Service. (1984 ). Nutrient Intake of Individuals in 48 States, Year I977-78. Nationwide Food Consumption Survey, 1977-78, ReportNo.1-2. U.S. Department of Agriculture, Human Nutrition Information Service. (1986). Continuing Survey of Food Intakes by Individuals. Nationwide Food Consumption Survey Report No. 85-3. U.S. Department of Agriculture, HumanN utrition Information Service. (1987). Continuing Survey of Food Intakes by Individuals. Nationwide Food Consumption Survey Report No. 86-1 . U.S. Department of Agriculture, Human Nutrition Information Service. (1989). Guidelines for the Use of Weights When Analyzing and Reporting HNIS Survey Data. Hyattsville, MD. 2002 Vol. 14No. 1 23 U.S. Department of Agriculture, Human Nutrition Information Service. (1992). The Food Guide Pyramid. Home and Garden Bulletin No. 252. U.S. Department of Agriculture, Human Nutrition Information Service. (1992). U.S. Department of Agriculture Nutrient Data Base for Individual Surveys. Release 7. Computer tape, Accession No. PB94-504552GEL. Springfield, VA: U.S. Department of Commerce. U.S. Department of Agriculture, & U.S. Department of Health and Human Services. (1995). Nutrition and Your Health: Dietary Guidelines for Americans (4th ed.). Home and Garden Bulletin No. 232. U.S. Department of Agriculture. U.S. Department of Health and Human Services. ( 1988). The Surgeon General's Report on Nutrition and Health. DHHS (PHS) Pub]jcation 88-50210. Washington, DC. Wirfalt, A.K.E., & Jeffery, R.W. (1997). Using cluster analysis to examine dietary patterns: Nutrient intakes, gender, and weight status differ across food pattern clusters. Journal of the American Dietetic Association 97:272-279. Yates, A.L., Schlicker, S.A., & Suitor, C.W. (1998). Dietary Reference Intakes: The new basis for recommendations for calcium and related nutrients, B vitamins, and cho]jne. Journal of the American Dietetic Association 98(6):699-706. 24 Family Economics and Nutrition Review Mark Lino, PhD U.S. Department of Agriculture Center for Nutrition Policy and Promotion 2002 Vol.l4No. 1 Expenditures on Children by Families, 2000 Since 1960 the U.S. Department of Agriculture has provided estimates of expenditures on children from birth through age 17. This article presented the most recent estimates for husband-wife and single-parent families. Data were from the 1990-92 Consumer Expenditure Survey. The Consumer Price Index was used to update income and expenditures to 2000 dollars. Data and methods used in calculating child-rearing expenses were described and estimates were provided for major components of the budget by age of the child, family income, and region of residence. Expenses on the younger child in a two-child, husbandwife household for the overall United States averaged $6,280 to $14,260 in 2000, depending on the child's age and family income group. Adjustment factors for number of children in the household were also provided. Results of this study can be used in developing State child support guidelines and foster care payments and in developing family educational programs. Since 1960the U.S. Department of Agriculture (USDA) has provided estimates of expenditures on children from birth through age 17. These estimates are used in setting child support guidelines and foster care payments and in developing educational programs on parenthood. This study presents the latest childrearing expense estimates, which are based on 1990-92 expenditure data that have been updated to 2000 dollars. The study presents these new estimates for husband-wife and single-parent families. It briefly describes the data and methods used in calculating childrearing expenses 1 and then discusses the estimated expenses. IThe Expenditures on Children by Families: 2000 Annual Report provides a more detailed description of the data and methods. To obtain a copy, contact USDA, Center for Nutrition Policy and Promotion, 3101 Park Center Drive, Room I 034, Alexandria, VA 22302 (telephone: 703-305-7600). The estimates are provided for the overall United States. The child-rearing expense estimates for husband-wife families are also provided for urban areas in four regions (Northeast, South, Midwest, and West) and rural areas throughout the United States2 to adjust partially for price differentials and varying patterns of expenditures. For single-parent families, estimates are provided for the overall United States only because of limitations in the sample size. Expenditures on children are estimated for the major budgetary components: housing, food, transportation, clothing, health care, child care and education, and miscellaneous goods and services. The box on p. 26 describes each expenditure component. 2Urban areas are defined as Metropolitan Statistical Areas (MSA's) and other places of 2,500 or more people outside an MSA; rural areas are places of less than 2,500 people outside an MSA. 25 Categories of Household Expenditures Housing expenses consists of shelter (mortgage interest, property taxes, or rent; maintenance and repairs; and insurance), utilities (gas, electticity, fuel, telephone, and water), and house furnishings and equipment (furniture, floor coverings, major appliances, and small appliances). For homeowners, housing expenses do not include mortgage principal payments; in the Consumer Expenditw·e Survey, such payments are considered to be part of savings. So, total dollars allocated to housing by homeowners are underestimated in this report. Food expenses consists of food and nonalcoholic beverages purchased at grocery, convenience, and specialty stores, including purchases with food stamps; dining at restaurants; and household expenditures on school meals. Transportation expenses consists of the net outlay on the purchase of new and used vehicles, vehicle finance charges, gasoline and motor oil, maintenance and repairs, insurance, and public transportation. Clothing expenses consists of children's apparel such as diapers, shirts, pants, dresses, and suits; footwear; and clothing services such as dry cleaning, alterations and repair, and storage. Health care expenses consists of medical and dental services not covered by insurance, prescription drugs and medical supplies not covered by insurance, and health insurance premiums not paid by the employer or other organization. Child care and education expenses consists of day care tuition and supplies; baby-sitting; and elementary and high school tuition, books, and supplies. Miscellaneous expenses consists of personal care items, entertainment, and reading materials. Data The 1990-92 Consumer Expenditure Survey (CE) is used to estimate expenditures on children. Administered by the Bureau of Labor Statistics (BLS), the CE collects information on sociodemographic characteristics, income, and expenditures of households. The CE, conducted annually since 1980, interviews about 5,000 households each quarter over a 1-year period. Each quarter is deemed an independent sample by BLS; thus, the total number of households in the 1990-92 survey is about 60,000. Husband-wife and single-parent families were selected from these households for this study if (1) they had at least one child of their own-age 17 or under-in the household, (2) they had six or fewer children, (3) they had no other related or unrelated people 26 present in the household except their own children, and ( 4) they were complete income reporters.3 Quarterly expenditures were annualized. The sample consisted of 12,850 husband-wife households and 3,395 single-parent households. BLS weighting methods were used to weight the sample to reflect the U.S. population of interest. Although based on 1990-92 data, the expense estimates were updated to 2000 dollars by using the Consumer Price Index (CPI-U). (Expenditure and income data for 1990 and 1991 were first converted to 1992 dollars; then, all 3 years of data were updated to 2000 dollars.) 3Complete income reporters are households that provide values for major sources of income, such as wages and salaries, selfemployment income, and Social Security income. Methods The CE collects overall household expenditure data for some budgetary components (housing, food, transportation, health care, and miscellaneous goods and services) and child-specific expenditure data for other components (clothing, child care, and education). Multivariate analysis was used to estimate household and child-specific expenditures. Income level, family size, and age of the younger child were controlled so that estimates could be made for families with these varying characteristics. Regional estimates were derived by controlling for region. The three income groups of husband-wife households were determined by dividing the sample for the overall United States into equal thirds: beforetax income under $31,000, between $31,000and $52,160, andover$52,160 in 1992dollars. Family Economics and Nutrition Review For each income level, the estimates were for husband-wife families with two children. The younger child was in one of six age categories: 0-2, 3-5, 6-8, 9-11, 12-14, and 15-17. Households with four members (two children) were selected as the standard because in 1990-92 this was the average household size of twoparent families. The focus was on the younger child in a household because the older child was sometimes over age 17. The estimates are based on CE Interviews of households with and without specific expenses; so for some families, expenditures may be higher or lower than the mean estimates, depending on whether they incur the expense. This applies particularly to child care and education for which about 50 percent of families in the study had no expenditure. Also, the estimates cover out-ofpocket expenditures on children made by the parents only and not by others, such as grandparents or friends. For example, the value of clothing gifts to children from grandparents would not be included in clothing expenses. Regional income categories were based on the national income categories in 1992 dollars that were updated to 2000 dollars by using regional CPI' s. The regional income categories were not divided into equal thirds for each region as was done for the overall United States. After the various overall household and child-specific expenditures were estimated, these total amounts were allocated among the four family members (husband, wife, older child, and younger child). The estimated expenditures for clothing and child care and education were for children only. It was assumed that these expenses were allocated equally to each child; therefore, the estimated 2002 Vol.l4No.l expenditures were divided by two (the number of children in the household). Because the CE did not collect expenditures on food and health care by family member, data from other Federal studies were used to apportion these budgetary components to chiklr~!1 by age. Shares of the food budget as a percentage of total food expenditures-for the younger child in a husband-wife household with two children-were determined by using the 1994 USDA food plans (U.S. IieJ:.-~:-'111ent of Agriculture, 1994 ). These shares were estimated by age of the child and household income level. The food budget shares were then applied to estimated household food expenditures to determine food expenses on children. Shares of the health care budget as a percentage of total health care expenses for the younger child in a husband-wife household with two children were calculated from the 1987 National Medical Expenditure Survey (Lefkowitz & Monheit, 1991). These shares were estimated by age of the child and applied to estimated household health care expenditures to determine expenses on children. No research base exists for allocating estimated household expenditures on housing, transportation, and miscellaneous goods and services among household members. The marginal cost method and the per capita method are two of the most common approaches for allocating these expenses. The marginal cost method measures expenditures on children as the difference in expenses between couples with children and equivalent childless couples. This method depends on development of an equivalency measure; however, there is no universally accepted measure. Proposed methods have produced different estimates of expenditures on children.4 Some of the marginal cost approaches assume that parents or couples do not alter expenditures on themselves after a child is added to a household. Also, couples without children often buy larger-than-needed homes at the time of purchase in anticipation of children. Comparing the expenditures of childless couples with expenditures of similar couples that have children could lead to underestimated expenditures on children. Lastly, the marginal cost method does not provide a direct estimate of how much is spent on a child. It estimates how much money families with children must be compensated to bring the parents to the same utility level (as gauged by an equivalence scale) of couples without children. This is a different question from "how much do parents spend on children?" For these reasons, the USDA uses the per capita method to allocate housing, transportation, and miscellaneous goods and services among household members. The per capita method allocates expenses among household members in equal proportions. Although the per capita method has limitations, these limitations were considered less severe than those of the marginal cost approach. A major limitation of the per capita method is that expenditures for an additional child may be less than average expenditures. Consequently, for households of different sizes, 4For a review of equivalency measures and estimates of expenditures on children resulting from them, see U.S. Department of Health and Human Services, Office of the Assistant Secretary for Planning and Evaluation, 1990, Estimates of Expenditures on. Children and Child Support Guidelines (U.S. Department of Health and Human Service , 1990). 27 adjustment formulas were devised to estimate expenditures on one child or three or more children. These formulas are discussed later in the paper. Transportation expenses resulting from employment activities are not related to expenses on children, so these costs were excluded from the estimated household transportation expenses. Data used to estimate workrelated transportation expenses were from a 1990 study by the U.S. Department of Transportation ( 1994 ). Although the USDA uses the per capita approach rather than a marginal cost approach in allocating housing, transportation, and miscellaneous expenditures to chi ldren in a household, a USDA study examined how these expenses would be allocated using different marginal cost approaches (Lino & Johnson, 1995). These marginal cost approaches produced estimates of expenditures on children for housing and miscellaneous goods and services below those produced by the per capita method. In addition, these approaches produced estimates of transportation expenditures on children above those produced by the per capita method. Estimated Expenditures on Children by Husband-Wife Households Estimates of family expenditures on the younger child in husband-wife households with two children are presented in tables 2 through 7 on pp. 36-41. The estimates are for the overall United States, urban regions, and overall rural areas. Household income levels were updated to 2000 dollars by using the all-items category of the CPI-U, and expenditures were updated by using the CPI for the corresponding item (i.e., the CPI's for housing, food, etc.). Regional estimates were updated to 28 Figure 1. Estimated 2000 annual family expenditures on a child, by before-tax income level and age of child1 16,000 14,000 12,000 10,000 ~ !Jl 0 8,000 0 6,000 4,000 2,000 0 0-2 3-5 6-8 9-11 12-14 15-17 Age of child Less than $38,000 • $38,000 - $64,000 • More than $64,000 1U.S. average for the younger child in husband-wife families with children. 2000 dollars by using the regional CPI's. The following subsections highlight the child-rearing expense estimates for the younger child in a two-child household for the overall United States by income level, budgetary component, and age of the child. Child-rearing expenses by region are also discussed. Income Level Estimated expenses on children vary considerably by household income level (fig. 1). Depending on age of the child, the annual expenses range from $6,280 to $7,380 for families in the lowest income group (2000 before-tax income less than $38,000), from $8,740 to $9,860 for families in the middleincome group (2000 before-tax income between $38,000 and $64,000), and from $13,000to $14,260 for families in the highest income group (2000 before-tax income more than $64,000). On average, households in the lowest group spend 28 percent of their before-tax income per year on a chi ld; those in the middleincome group, 18 percent; and those in the highest income group, 14 percent. The range in these percentages would be narrower if after -tax income were considered, because a greater percentage of income in higher income households goes toward taxes. Although families in the highest income group spend, on average, slightly less than twice the amount on a child than that spent by families in the lowest income group, the amount varies by budgetary component. In general, expenses on a child for goods and services considered to be necessities (e.g., food and clothing) do not vary as much as those considered to be discretionary (e.g., miscellaneous expenses) among households in the three income groups. For example, clothing expenses on a child age 15-17 average $670 in the lowest income group and $1,020 in the highest income group, a 52-percent difference. Miscellaneous expenses on a child of the same age average $640 in the lowest income group and $1,630 in the highest income group, a !55-percent difference. Family Economics and Nutrition Review Budgetary Component Housing accounts for the largest share of total child-rearing expenses. The box on p. 30 shows this for families in the middle-income group. Based on an average for the six age groups, housing accounts for 33 to 36 percent of childrearing expenses for a child; the percentage rises with income. Food is the second largest average expense on a child for families regardless of income level. It accounts for 20 percent of child-rearing expenses for a child in the lowest income group, 18 perce11t in the middle-income group, and 15 percent in the highest income group. Transportation, the third largest child-rearing expense, makes up 14 to 15 percent of child-rearing expenses across income levels. Across the three income groups, miscellaneous goods and services (personal care items, entertainment, and reading materials) is the fourth largest expense on a child for families (10 to 12 percent). For families, clothing (excluding that received as gifts or hand-me-downs) accounts for 6 to 8 percent of expenses on a child, child care and education accounts for 8 to 11 percent, and health care accounts for 6 to 7 percent of child-rearing expenses across income groups. Estimated expenditures for health care include only out-of-pocket expenses (including insmance premiums not paid by an employer or other organization) and not that portion covered by health insmance. Age of Child Expenditures on a child are lower in the younger age categories and higher in the older age categories. Figure 2 depicts this for families in the middleincome group. This held across income groups and held even though housing expenses, the highest child-rearing expenditure, generally decline as the 2002 Vol. 14 No. 1 child ages. The decline in housing expenses reflects diminishing interest paid by homeowners over the life of a mortgage. Payments on principal are not considered part of housing costs in the CE; they are deemed to be part of savings. For all three income groups, food, transportation, clothing, and health care expenses related to child-rearing generally increase as the child ages. Transportation expenses are highest for a child age 15-1 7. when he or she would start driving. Child care and education expenses are highest for a child under age 6. Most of this expense may be attributable to child care at this age. The estimated expense for child care and education may seem low for those with the expense. The estimates reflect the average of households with and without the expense. Region Child-rearing expenses in the regions reflect patterns observed in the overall United States: in each region, expenses on a child increase with household income level and, generally, with age of the child (fig. 3). Overall child-rearing expenses are highest in the urban West, followed by the urban Northeast, and urban South. Child-rearing expenses are lowest in the urban Midwest and rural areas. Much of the difference in expenses on a child among regions is related to housing costs. Total housing expenses on a child are highest in the urban West and urban Northeast and lowest in rmal areas. However, childrearing transportation expenses are highest for families in rural areas. This likely reflects the longer traveling distances and the lack of public transportation in these areas. Food is the second largest average expense on a child for families regardless of income level. 29 Expenditures on Children Over Time Since 1960 the U.S. Department of Agriculture has provided estimates of expenditures on children from birth through age 17. The original estimates were based on the 1960 Consumer Expenditure Survey. The figure that follows shows how these expenditure estimates have changed from 1960 to 2000. Depicted are the average total expenditures on a child from birth through age 17 in a middle-income, husband-wife family. Total expenses are in 2000 dollars (1960 expenses are adjusted for inflation). Expenses to raise a child through age 17 have increased in real terms, from$146,780 in 1960 to $165,630 in 2000. New components of child-rearing costs, particularly child care, are among factors causing this increase. In 1960 child care expenses were negligible, because many mothers were not in the labor force. In 2000 child care expenses were among the largest expenditures made on preschool children by middle-income fanlilies. Expenditures on a child through age 17 by middle-income, husband-wife families 1960 Health care Clothing Child care and education 1% 2000 Transportation Child care and education Total expenses= $146,780 (in 2000 dollars) Total expenses= $165,630 Adjustments for Older Children and Household Size The expense estimates on a child represent expenditures on the younger child at various ages in a husband-wife household with two children. It cannot be assumed that expenses on the older child are the same at these various ages. Expenses may vary by birth order. The method described on pp. 26-28 was repeated to determine whether 30 a difference exists, the extent of this difference, and bow the expenditures may be adjusted to estimate expenses on an older child. The focus was on the older child in each of the same age categories as those used with the younger child. A two-child fami ly was again used as the standard. Household income and U.S. region of residence were not held constant, so findings are applicable to all families. On average, for husband-wife bouseholds with two children, expenditures do not vary by birth order. So, the expenditures in tables 2 through 7 reflect those on either child in a twochild family. Thus, annual expenditures on children in a husband-wife, twochild fami ly may be estimated by summing the expenses for the two appropriate age categories. For example, annual expenditures on children ages 9-11 and 15-17 in a husband-wifefamily in the middle-income group for the overall United States would be $18,810 ($8,950 + $9,860). For specific budgetary components, annual expenses on an older child vary, compared with those on a younger child: families spend more Family Economics and Nutrition Review Figure 2. Estimated 2000 annual family expenditures on a child,1 by age and budgetary share 100 80 c Q) 2 Q) [l_ 40 20 0 0-2 3-5 6-8 9-11 12-14 15-17 Age of child Miscellaneous Child care and education Clothing Health care Transportation Food Housing 1U.S. average for the younger child in middle-income, husband-wife families with two children. Figure 3. Estimated 2000 annual family expenditures on a child, 1 by region and age 11,000 10,500 10,000 ~ .!!! 0 9,500 0 9,000 8,500 8,000 0-2 3-5 6-8 9-11 Age of child • Urban Midwest • Urban South · - • Rural Urban Northeast .,...-·-· -·-· 12-14 15-17 Urban West 1 Regional average for the younger child in middle-income, husband-wife families wilh two children. 2002 Vol. 14No.l on clothing and education for an older child but less on transportation. The estimates should also be adjusted if a household has only one child or more than two children. Families will spend more or less on a child depending on the number of other children in the household and economies of scale. Multivariate analysis was used to estimate expenditures for each budgetary component to derive these figures. Household size and age of the younger child were controlled; household income level and region of the country were not. The results, therefore, are applicable to all families. These expenditures were then assigned to a child by using the method described earlier. Compared with expenditures for each child in a husband-wife, two-child family, expenditures for the child in a one-child family average 24 percent more and for those with three or more children, 23 percent less on each child. To adjust the figures in tables 2 through 7 to estimate annual overall expenditures on an only child, users of this report should, therefore, add 24 percent to the total expense for the child's age category. To estimate expenditures on three or more children, users should subtract 23 percent from the total expense for each child's age category and then sum the totals. An example of adjustments needed for different number of children follows. The total expenses for a middle-income family in the overall United States on a child age 15-17 with no siblings would be $12,230 ($9,860 x 1.24) and the total expenses on three children ages 3-5, 12- 14, and 15-17 would be $21,970 ([$8,980 + $9,690 + $9 ,860] x. 77). For a particular budgetary component, the percentages may be more or less. As family size increases, food costs per child decrease less than housing and transportation costs per child decrease. 31 Single-parent families in this lower income group, therefore, spend a larger proportion of their income on children than do two-parent families. 32 Expenditures by Single-Parent Families The estimates of expenditures on children by husband-wife families do not apply to single-parent families, a group that accounts for an increasing percentage of families with children. Therefore, separate estimates of childrearing expenses in single-parent households were made by using the CE data. Most single-parent families in the survey (90 percent) were headed by a woman. The method used in determining child-rearing expenses for two-parent households was followed. Multivariate analysis was used to estimate expenditures for each budgetary component. Control variables were income level, household size, and age of the younger child (the same age categories as those used with children in two-parent families). A single parent with two children was used as the standard for household size. Income groups of single-parent households (before-tax income under $31,000 and $31,000 and over in 1992 dollars, inflated to 2000 dollars) were selected to correspond with the income groups used in estimating child-rearing expenditures in husband-wife households. This income includes child support payments. The two higher income groups of two-parent families (income between $31,000 and $52,160 and over $52,160 in 1992 dollars) were combined because only 17 percent of single-parent households had a beforetax income of $31 ,000 and over. The sample was weighted to reflect the U.S. population of interest. Children's clothing and child care and education expenditures were divided between the two children in the oneparent household. For food and health care, household member shares were calculated for a three-member household (single parent and two children, with the younger child in one of the six age categories). The USDA food plans and the 1987 National Medical Expenditure Survey were used to do this. These shares for the younger child in a singleparent family were then applied to estimated food and health care expenditures to determine expenses on the younger child in each age category. Housing, transportation, and miscellaneous expenditures were allocated among household members on a per capita basis. Transportation expenses were adjusted to account for nonemployment- related activities in singleparent families. Income and expenses were updated to 2000 dollars. Child-rearing expense estimates for single-parent families are in table 8, p. 42. For the lower income group (2000 before-tax income less than $38,000), a comparison is presented in table 1 of estimated expenditures on the younger child in a single-parent family with two children versus expenditures on the younger child in a husband-wife family with two children. As discussed earlier, 83 percent of single-parent families and 33 percent of husband-wife families were in this lower income group. More single-parent than husband-wife families were in the bottom range of this lower income group. Average income for single-parent families in the lower income group is $15,900; for husband-wife families it is $23,800. However, total expenditures on a child through age 17 are, on average, only 5 percent lower in single-parent households than in two-parent households. Single-parent families in this lower income group, therefore, spend a larger proportion of their income on children than do two-parent families. On average, housing expenses are higher; Family Economics and Nutrition Review Table 1. Comparison of estimated 2000 expenditures on a child1 by lower income single-parent and husband-wife families Single-parent Husband-wife Age of child households households 0-2 $5,270 $6,280 3-5 5,950 6,420 6-8 6,710 6,520 9 - 11 6,260 6,530 12 -14 6,730 7,380 15-17 7,460 7,280 Totai(0-17) $115,140 $121 ,230 1 Estimates are for the younger child in two-child families in the overall Un~ed States with 2000 before-tax income less than $38,000. whereas, transportation, health care, child care and education, and miscellaneous expenditures on a child are lower in single-parent than in husband-wife households. Child-related food and clothing expenditures are similar, on average, in single- and two-parent families. For the higher income group of singleparent families (2000 before-tax income of$38,000 and over), child-rearing expense estimates are about the same as those for two-parent households in the before-tax income group of $64,000 and over. Total expenses, in 2000 dollars, for the younger child through age 17 are$242,910for singleparent families versus $241,770 for husband-wife families. Child-rearing expenses for the higher income group of single-parent families, therefore, also are a larger proportion of income than they are in husband-wife families. Thus, expenditures on children do not differ much between single-parent and husband-wife households. What differs is household income levels. Because single-parent families have one less potential earner than do husband-wife families, on average, their total household income is lower, and child-rearing expenses are a greater percentage of this income. 2002 Yol.l4No. I Estimates cover only out-of-pocket child-rearing expenditures made by the parent with primary care of the child and do not include child-related expenditures made by the parent without primary care or made by others, such as grandparents. Such expenditures could not be estimated from the data. Overall expenses by both parents on a child in a single-parent household are likely greater than estimates of this study. The procedure detailed earlier was repeated to determine the extent of the difference in expenditures on an older child in single-parent households. The focus was on the older child, and a family with two children was used as the standard. On average, single-parent households with two children spend 7 percent less on the older child than on the younger child (in addition to age-related differences). This contrasts with husband-wife households whose expenditures are unaffected by birth order. As with husband-wife households, single-parent households spend more or less if there is only one child or three or more children. Multivariate analysis was used to estimate expenditures for each budgetary component to determine these differences. Household size and age of the younger child were control variables. Expenditures were then assigned to a child by using the method described earlier. Compared with expenditures for the younger child in a single-parent, two-child family, expenditures for an only child in a single-parent household average 35 percent more, and expenditures for three or more children in a single-parent household average 28 percent less on each child. Other Expenditures on Children Expenditures on a child that were estimated in this study consist of direct parental expenses made on a child through age 17 for seven major budgetary components. These direct expenditures exclude costs related to childbirth and prenatal health care. In 1996 these particular health care costs averaged $7,090 for a normal deli very and $11,450 for a Cesarean delivery (Mushinski, 1998). These costs may be reduced by health insurance. One of the largest expenses made on children after age 17 is the cost of a college education. The College Board (2000) estimates that in 2000-2001, average annual tuition and fees are $3,420 at 4-year public colleges and $13,688 at4-yearprivate colleges. Annual room and board is $4,705 at 4-year public colleges and $5,447 at 4-year private colleges. For 2-year colleges in 2000-2001, average annual tuition and fees are $1,655 at public colleges and $8,210 at private colleges. Annual room and board is $4,685 at 2-year private colleges. No estimates of room and board are given for 2-year public colleges. Other parental expenses on children after age 17 include those associated with children living at home, or if children do not live at home, gifts and other contributions to them. 33 Estimating Future Costs The estimates presented in this study represent household expenditures on a child of a certain age in 2000. To estimate these expenses for the first 17 years, we need to incorporate future price changes in the figures. To do this, we use a future cost formula, such that: where: Cf = projected future annual dollar expenditure on a child of a particular age CP = present (2000) annual dollar expenditure on a child of a particular age i = projected annual inflation (or deflation) n =number of years from present until child will reach a particular age An example is presented of estimated Estimated annual expenditures on children 1 born in 2000, by income group, future expenditures on the younger overall United States child in a husband-wife family with two children for each of the three Income grouQ income groups for the overall United Year Age Lowest Middle Highest States. The example assumes a child is born in 2000 and reaches age 17 2CXXl <1 $6,280 $8,740 $13,000 in the year 2017. The example also 2001 6,520 9,070 13,490 assumes that the average annual 2002 2 6,770 9,420 14,010 inflation rate over this time is 3.8 2003 3 7,180 10,040 14,850 percent, the average annual inflation 2004 4 7,450 10,420 15,420 rate over the past 20 years (U.S. Department of Commerce, 2000). 20li 5 7,740 10,820 16,000 Thus total family expenses on a child 20)3 6 8,160 11,240 16,460 through age 17 would be $171,460, 2007 7 8,470 11,670 17,090 $233,530, and $340,130 for households 2COO 8 8,790 12,120 17,740 in the lowest, middle, and highest 2rol 9 9,130 12,520 18,210 income groups, respectively. In 2000 dollars, these figures would be 2010 10 9,480 13,000 18,910 $121,230,$165,630, and $241,770. 2011 11 9,840 13,490 19,620 2012 12 11,550 15,160 21,700 Inflation rates other than 3.8 percent 2013 13 11 ,980 15,740 22,520 could be used in the formula if projec- 2014 14 12,440 16,330 23,380 tions of these rates vary in the future. Also, it is somewhat unrealistic to 2015 15 12,740 17,250 24,950 assume that households remain in 2016 16 13,220 17,910 25,900 one income category as a child ages. 2017 17 13,720 18,590 26,880 For most families, income rises over Total time. In addition, such projections $171,460 $233,530 $340,130 assume child-rearing expenditures 1 change only with inflation, but Estimates are for the younger child in husband·wife families with two children. parental expenditure patterns also change over time. 34 Family Economics and Nutrition Review The estimates do not include all government expenditures on children. Examples of excluded expenses are public education, Medicaid, and school meals. The actual expenditures on children (by parents and the government) would be higher than reported in this study, especially for the lowest income group. Indirect child-rearing costs are also not included in the estimates. Although these costs are typically more difficult to measure than are direct expenditures, they can be substantial. The time involved in rearing children is considerable. In addition, one or both parents may need to reduce hours spent in the labor force to care for children, thus reducing current earnings and future career opportunities. The indirect costs of child rearing may exceed the direct costs. For more on these indirect costs, see Bryant, Zick, and Kim (1992); Ireland and Ward (1995); Longman (1998); and Spalter-Roth and Hartmann (1990). 2002 Voi.14No.1 References Bryant, W.K., Zick, C.D., & Kim, H. (1992). The Dollar Value of Household Work. College of Human Ecology, Ithaca, NY: Cornell University. The College Board. (2000). Trends in College Pricing 2000. Retrieved March 2001 from www .collegeboard.org. Ireland, T.R., & Ward, J.O. (1995). Valuing Children in Litigation: Family and Individual Loss Assessment. Tucson, AZ: Lawyers and Judges Publishing Company, Inc. Lefkowitz, D., & Monheit, A. ( 1991 ). Health Insurance, Use of Health Services, and Health Care Expenditures. National Medical Expenditure Survey Research Findings 12. Publication No. 92-0017. U.S. Department of Health and Human Services, Public Health Service, Agency for Health Care Policy and Research. Lino, M., & Johnson, D.S. ( 1995). Housing, transportation, and miscellaneous expenditures on children: A comparison of methodologies. Family Economics Review 8( 1 ):2-12. Longman, P.J. (1998, March 30). The Cost of Children. U.S. News & World Report 124( 12):50-58. Mushinski, M. (1998). Average charges for uncomplicated vaginal, Cesarean and VBAC deliveries: Regional variations, United States, 1996. Statistical Bulletin 79(3):17-28. Spalter-Roth, R.M. , & Hartmann, H.l. (1990). Unnecessary Losses: Costs to Americans of the Lack of Family and Medical Leave. Washington, DC: Institute for Women's Policy Research. U.S. Department of Agriculture, Agricultural Research Service. (1994 ). Cost of food at home. Family Economics Review 7(4):45 . U.S. Department of Commerce, Bureau of the Census. (2000). Statistical Abstract of the United States, 2000. [120th ed.]. U.S. Department of Health and Human Services, Office of the Assistant Secretary for Planning and Evaluation. (1990). Estimates of Expenditures on Children and Child Support Guidelines. U.S . Department of Transportation, Federal Highway Administration. ( 1994 ). I 990 Nationwide Personal Transportation Study. 35 Table 2. Estimated annual expenditures* on a child by husband-wife families, overall United States, 2000 Child care Transpor- Health and Miscel- Age of Child Total Housing Food tation Clothing care education laneoust Before-tax income: Less than $38,000 (Average=$23,800) 0-2 $6,280 $2,400 $880 $770 $380 $440 $800 $610 3-5 6,420 2,370 980 750 370 420 900 630 6-8 6,520 2,290 1,260 870 410 490 530 670 9- 11 6,530 2,070 1,510 950 450 530 320 700 12- 14 7,380 2,310 1,590 1,070 760 540 230 880 15 - 17 7,280 1,860 1,720 1,440 670 570 380 640 Total $121,230 $39,900 $23,820 $17,550 $9,120 $8,970 $9,480 $12,390 Before-tax income: $38,000 to $64,000 (Average=$50,600) 0-2 $8,740 $3,250 $1,060 $1 '150 $440 $580 $1,310 $950 3-5 8,980 3,220 1,220 1 '130 430 560 1,450 970 6-8 8,990 3,140 1,550 1,250 480 630 930 1,010 9 - 11 8,950 2,920 1,830 1,330 530 690 610 1,040 12 - 14 9,690 3,150 1,840 1,450 890 690 450 1,220 15 - 17 9,860 2,710 2,050 1,830 790 730 770 980 Total $165,630 $55,170 $28,650 $24,420 $10,680 $11 ,640 $16,560 $18,510 Before-tax income: More than $64,000 (Average=$95,800) 0-2 $13,000 $5,160 $1,400 $1 ,610 $580 $670 $1,980 $1,600 3-5 13,280 5,1 30 1,580 1,590 570 640 2,160 1,610 6-8 13,160 5,050 1,910 1,710 620 730 1,490 1,650 9- 11 13,020 4,830 2,220 1,790 680 790 1,030 1,680 12 - 14 13,870 5,070 2,330 1,910 1 '120 790 790 1,860 15 - 17 14,260 4,620 2,450 2,310 1,020 840 1,390 1,630 Total $241,770 $89,580 $35,670 $32,760 $13,770 $13,380 $26,520 $30,090 *Estimates are based on 1990-92 Consumer Expenditure Survey data updated to 2000 dollars using the Consumer Price Index. For each age category, the expense estimates represent average child-rearing expenditures for each age (e.g., the expense for the 3-5 age category, on average, applies to the 3-year-old, the 4-year-old, or the 5-year-old). The figures represent estimated expenses on the younger child in a two-child family. Estimates are about the same for the older child, so to calculate expenses for two children, figures should be summed for the appropriate age categories. To estimate expenses for an only child, multiply the total expense for the appropriate age category by 1.24. To estimate expenses for each child in a family with three or more children, multiply the total expense for each appropriate age category by 0.77. For expenses on all children in a family, these totals should be summed. tMiscellaneous expenses include personal care items, entertainment, and reading materials. 36 Family Economics and Nutrition Review Table 3. Estimated annual expenditures* on a child by husband-wife families, urban West,t 2000 Child care Transpor- Health and Miscel- Age of Child Total Housing Food tation Clothing care education laneousl= Before-tax income: Less than $38,200 (Average=$23,800) 0-2 $7,000 $2,930 $970 $850 $360 $380 $790 $720 3-5 7,160 2,910 1,080 830 350 360 890 740 6-8 7,300 2,870 1,380 940 390 410 530 780 9 - 11 7,400 2,71 0 1,660 1,010 440 440 320 820 12 - 14 8,200 2,910 1,730 1 '140 740 460 230 990 15 - 17 8,150 2,500 1,870 1,510 650 480 380 760 Total $135,630 $50,490 $26,070 $18,840 $8,790 $7,590 $9,420 $14,430 Before-tax income: $38,200 to $64,200 (Average=$50,800) 0-2 $9,470 $3,770 $1 '140 $1 ,240 $430 $510 $1,320 $1,060 3-5 9,730 3,750 1,310 1,220 420 490 1,460 1,080 6-8 9,770 3,71 0 1,670 1,330 460 550 930 1,120 9- 11 9,810 3,550 1,970 1,410 510 600 610 1 '160 12 - 14 10,520 3,750 1,980 1,540 860 610 450 1,330 15 - 17 10,730 3,340 2,200 1,920 770 630 770 1 '100 Total $180,090 $65,610 $30,810 $25,980 $10,350 $10,170 $16,620 $20,550 Before-tax income: More than $64,200 (Average=$96,100) 0-2 $13,600 $5,580 $1,470 $1,710 $560 $600 $1,990 $1,690 3-5 13,910 5,560 1,660 1,690 550 570 2,170 1,710 6-8 13,810 5,520 2,000 1,800 600 650 1,490 1,750 9 - 11 13,760 5,360 2,340 1,870 660 700 1,040 1,790 12 - 14 14,550 5,550 2,440 2,000 1,080 710 810 1,960 15 - 17 14,980 5,140 2,580 2,400 980 740 1,410 1,730 Total $253,830 $98,130 $37,470 $34,410 $13,290 $11,910 $26,730 $31,890 *Estimates are based on 1990-92 Consumer Expenditure Survey data updated to 2000 dollars using the regional Consumer Price Index. For each age category, the expense estimates represent average child-rearing expenditures for each age (e.g., the expense for the 3-5 age category, on average, applies to the 3-year-old, the 4-year-old, or the 5-year-old). The figures represent estimated expenses on the younger child in a two-child family. Estimates are about the same for the older child, so to calculate expenses for two children, figures should be summed for the appropriate age categories. To estimate expenses for an only child, multiply the total expense for the appropriate age category by 1.24. To estimate expenses for each child in a family with three or more children, multiply the total expense for each appropriate age category by 0.77. For expenses on all children in a family, these totals should be summed. tThe Western region consists of Alaska, Arizona, California, Colorado, Hawaii, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, and Wyoming. l=Miscellaneous expenses include personal care items, entertainment, and reading materials. 2002 Voi.14No.1 37 Table 4. Estimated annual expenditures* on a child by husband-wife families, urban Northeast,t 2000 Child care Transpor- Health and Miscel- Age of Child Total Housing Food tation Clothing care education laneous:l: Before-tax income: Less than $37,800 (Average=$23,600) 0-2 $6,570 $2,860 $980 $640 $400 $430 $660 $600 3-5 6,700 2,840 1,080 610 390 410 750 620 6-8 6,910 2,800 1,390 720 440 470 430 660 9- 11 7,050 2,640 1,660 800 490 510 250 700 12 - 14 7,920 2,840 1,740 930 830 520 180 880 15 - 17 7,800 2,440 1,870 1,280 730 550 290 640 Total $128,850 $49,260 $26,160 $14,940 $9,840 $8,670 $7,680 $12,300 Before-tax income: $37,800 to $63,500 (Average=$50,200) 0-2 $8,990 $3,680 $1 '1 50 $1 ,030 $480 $580 $1 '120 $950 3-5 9,200 3,660 1,310 1,000 460 550 1,250 970 6-8 9,330 3,620 1,670 1 '120 510 630 780 1,000 9- 11 9,400 3,460 1,970 1 '190 570 670 500 1,040 12 - 14 10,190 3,660 1,970 1,320 970 690 360 1,220 15 - 17 10,330 3,260 2,190 1,690 860 720 620 990 Total $172,320 $64,020 $30,780 $22,050 $11 ,550 $11 ,520 $13,890 $18,510 Before-tax income: More than $63,500 (Average=$95,100) 0-2 $13,010 $5,440 $1 ,470 $1,490 $610 $670 $1,750 $1,580 3-5 13,310 5,430 1,650 1,470 600 650 1,910 1,600 6-8 13,290 5,390 1,990 1,580 660 740 1,290 1,640 9- 11 13,250 5,230 2,320 1,650 720 780 870 1,680 12 - 14 14,160 5,420 2,430 1,780 1,200 800 670 1,860 15 - 17 14,450 5,020 2,550 2,170 1,090 830 1 '160 1,630 Total $244,410 $95,790 $37,230 $30,420 $14,640 $13,410 $22,950 $29,970 *Estimates are based on 1990-92 Consumer Expenditure Survey data updated to 2000 dollars using the regional Consumer Price Index. For each age category, the expense estimates represent average child-rearing expenditures for each age (e.g., the expense for the 3-5 age category, on average, applies to |
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