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LET | Nutrition Curricula | Health Disparities

Dietary Habits

Healthy People 20107

  • Reduce growth retardation among low-income children under age 5 years from 8% to 5%.
  • Reduce iron deficiency among young children aged 1 to 2 from 9% to 5%, among children aged 3-4 from 4% to 1%, and among non pregnant women aged 12-44 from 11% to 4%.
  • Increase the proportion of persons aged 2 years and older who consume at least two daily servings of fruit from 28% to 75%
  • Increase the proportion of persons aged 2 years and older who consume at least three daily servings of vegetables, with at least one-third being dark green or deep yellow vegetables, from 3% to 50%.
  • Increase the proportion of persons aged 2 years and older who consume at least six daily servings of grain products, with at least three being whole grain, to from 7% to 50%.
  • Increase the proportion of persons aged 2 years and older who consume less than ten percent of calories from saturated fat from 36% to 75%.
  • Increase the proportion of persons aged 2 years and older who consume no more than 30 percent of calories from fat to from 33% to 75%.
  • Increase the proportion of persons aged 2 years and older who consume 2,400 mg or less of sodium daily to from 21% to 65%.
  • Increase the proportion of persons aged 2 years and older who meet dietary recommendations for calcium fromm 46% to 75% (U.S. Department of Health and Human Services, 2000).

Growth retardation

Growth retardation, defined as height for age less than the 5th percentile, reflects chronic undernutrition.  Weight for height is impacted before height for age falls.  In addition to undernutrition, growth retardation may reflect the presence of infectious disease, chronic disease, and poor health.7 

During the development of the new growth charts, an expert panel concluded that growth variation among racial/ethnic groups was not sufficient to warrant race/ethnic specific growth charts.  According to the Pediatric Nutrition Surveillance System, the prevalence of growth retardation is higher than expected among low income children during the first five years of life and varies by ethnic/racial group.

Growth Retardation among Children Under 5 Years of Age by Race (Pediatric Nutrition Surveillance System).

Low Income Children Under Age 5 Years, 1997 < Age 5 < Age 1    Aged 1 Year   Aged 2-4

Total

8

10

 9

 6

American or Alaska Native

8

 9

 7

 9

Asian or Pacific Islander

9

 9

11

 8

Black, non-Hispanic

9

15

10

 5

White, non-Hispanic

8

10

 9

 6

Hispanic

7

7

8

5

U.S. Department of Health and Human Services. (2000) Healthy People 2010 (Conference Edition, in Two Volumes). Washington, DC: January 2000.

  • Growth retardation is three times more prevalent than expected among low income Black infants under one year of age.
  • Growth retardation is twice as prevalent as expected among low income white children under one year of age and Black and Asian or Pacific Islander children aged 1 year.

Iron Deficiency and Anemia

The prevalence of iron deficiency varies by age, gender, race/ethnicity and income. 

  • The prevalence of iron deficiency among lower income children under 5 and women of childbearing years is about 170% that of their higher income counterparts.
  • The prevalence of iron deficiency among Black and Mexican women of childbearing age and children under age five is 1.7 to 6 times higher than their white counterparts.

A study of 485 toddlers ages 1-3 years olds in the New York area reported that 35% had iron insufficient stores to some degree and 10% had iron deficiency anemia.95 

An examination of records of children treated at Children's Hospital in Philadelphia with a diagnosis of severe iron deficiency anemia noted a high prevalence among Southeast Asians who comprised 40% of the patients with iron deficiency but only 1% of the total patients. 

Interestingly, African American children comprised 5% of the children with iron deficiency anemia but 48% of the population.96

Dietary factors contributing to iron deficiency anemia in young children are

  • Use of cow's milk during the first year of life.
  • Excessive intake of milk (24 oz. per day meets the calcium needs of 1- 5 year olds).
  • Excessive intake of fruit juice or drinks.
  • Insufficient intake of foods high in iron after 4-6 months of age such as iron fortified infant cereals and meat and meat alternatives.95,97

Macronutrient and Sodium Intake

Average intakes of fat, saturated fat, sodium, and cholesterol among children and adolescents are higher than current recommendations. 

Among fifth graders in the Bogalusa Heart Study, total fat intake was 35.8% and saturated fat made up 12.5% of the daily calories consumed. In that population of participants, 80% exceeded total fat recommendations, and 70% exceeded saturated fat recommendations.99 

According to the National Food Consumption Survey and the CSFII from 1965 to 1996, egg and lean meat consumption declined and grain intake of adolescents increased primarily through high fat mixed dishes such as pizza, macaroni and cheese, and certain ethnic dishes. 

orangeMilk intake decreased and was replaced by a dramatic increase in soft drinks and other sweetened beverages.  Raw fruit intake declined but juice intake increased.99  

From 1977-1996, the number of snacks and energy density of snacks consumed daily by children and adolescents increased significantly.  The energy contribution of snacks increased from about 20% of calories to 25% of calories and the proportion of fat increased from about 17% of total fat to 22%.100

Reports of ethnic/racial variations in fat and cholesterol intake report inconsistent findings.

  •   Although percent calories from fat, and cholesterol and sodium intakes did not vary by race/ethnicity among third grade CATCH participants, energy intake was highest among Blacks and lowest among Hispanics 101
  • NHANES reported a higher percentage of energy from fat for Black and Mexican American girls and Black boys than for White girls and boys.  The ethnic differences in percent calories from fat were seen as early as 6-9 years of age for females and by 10-13 years of age in males.102

Mean Macronutrient and Sodium Intake of Males by Age and Race/ethnicity, NHANES 1988-1991

 

Cholesterol (mg)

% total calories fat

% total calories saturated fat

Fiber (grams)

Sodium (mg)

 

White

Black

MA*

White

Black

MA*

White

Black

MA*

White

Black

MA*

White

Black

MA*

3-5 years

179

220

273

32.7

35.2

32.2

12.7

13.0

12.2

11.02

11.60

13.39

2,616

2,605

2,632

6-11 years

211

277

299

33.8

35.6

34.1

12.9

12.8

12.8

13.09

12.75

15.66

3,093

3,091

3,059

12-15 years

262

327

343

32.7

34.9

35.2

12.4

12.2

13.2

15.09

14.23

17.44

3,974

3,287

3,853

16-19 years

362

409

371

34.4

36.8

34.8

12.8

12.8

12.3

17.38

16.3

21.16

4,949

4,300

3,750

* MA=Mexican American

McDowell MA, Briefel RR, Alaimo K, Biscof AM, Caughman CR, Carroll MD, Loria CM. (1994)

Energy and macronutrient intakes of person ages 2 months and over in the United State: Third National Health and Nutrition Examination Survey, Phase 1, 1988-91.

Advance data from vital and health statistics: No 255. Hyattsville, Maryland:  National Center for Health Statistics.

Alaimo K, McDowell MA, Briefel RR, Bischof AM, Caughman CR, Loria CM & Johnson CL (1994). Dietary intake of vitamins, minerals, and fiber of persons ages 2 months and over in the United States:  Third National Health and Nutrition Examination Survey, Phase I. 1988-1991. Advance data from vital and health statistics, no 258, Hyattsville, Maryland: National Center for Health Statistics

Mean Macronutrient and Sodium Intake of Females by Age and Race/ethnicity, NHANES 1988-1991

 

Cholesterol (mg)

% total calories fat

% total calories saturated fat

Fiber (grams)

Sodium (mg)

 

White

Black

MA*

White

Black

MA*

White

Black

MA*

White

Black

MA*

White

Black

MA*

3-5 years

171

222

264

32.7

35.2

34.2

12.4

12.7

13.1

9.97

11.30

11.75

2,299

2,807

2,318

6-11 years

205

234

247

34.2

35.5

34.3

12.8

12.5

13.0

11.47

11.96

14.17

2,795

3,123

2,783

12-15 years

181

275

238

32.5

37.9

34.7

11.6

13.3

13.1

10.81

12.02

13.14

2,790

3,553

2,765

16-19 years

204

232

287

34.1

36.2

34.8

12.2

12.7

12.5

11.96

12.08

15.06

2,967

3,320

2,937

* MA=Mexican American

McDowell MA, Briefel RR, Alaimo K, Biscoff AM, Caughman CR, Carroll MD, Loria CM. (1994) Energy and macronutrient intakes of person ages 2 months and over in the United State: Third National Health and Nutrition Examination Survey, Phase 1, 1988-91. Advance data from vital and health statistics: No 255. Hyattsville, Maryland:  National Center for Health Statistics.

Alaimo K, McDowell MA, Briefel RR, Bischof AM, Caughman CR, Loria CM & Johnson CL (1994). Dietary intake of vitamins, minerals, and fiber of persons ages 2 months and over in the United States:  Third National Health and Nutrition Examination Survey, Phase I. 1988-1991. Advance data from vital and health statistics, no 258, Hyattsville, Maryland: National Center for Health Statistics


Food Group and Vitamin/Mineral Intake

carrotDietary intakes of children and adolescents do not meet current food guide pyramid guidelines according to the CSFII, 1989-1991.103 Over 45% met none or only one food group recommendation and only 5% met the recommendations for four or more food groups.   

  • White children were more likely than Black or Hispanic children to meet recommendations for grains and dairy products, but less likely than Black children to meet recommendations for vegetables. 
  • Higher income children were more likely to meet recommendations for fruit and dairy products.  Meeting food group recommendations was associated with micronutrient intakes above the RDA and fiber intake above the average. 
  • Those who met none of the recommendations had vitamin B6, calcium, iron, and zinc intakes below the RDA and the lowest fiber intake. 
  • Discretionary fat and sugar supplied 40% of calories and did not vary by race/ethnicity. 

According the CSFII, only 20% of children consumed 5 or more servings of fruits and vegetables.  Fruit and fruit juice accounted for one-third of fruit and vegetable intake with 16% of juice sweetened.  French fries accounted for almost one-fourth of all vegetables and about 14% of all fruit and vegetables.  Fruit and vegetable consumption increased slightly with income.104

Several statewide and national studies have reported ethnic differences in food group consumption patterns.

  • Birmingham, AL  Longitudinal Study of Childhood Obesity
    A study of 95 Black and White children in Alabama noted that Black children consumed 40% less dairy products but 50% more fruit and 25% more vegetables.105

  • Minnesota Adolescent Health Survey

    The Minnesota Health Survey examined demographic factors, psychosocial factors and health behaviors associated with fruit and vegetable consumption.  Inadequate fruit and vegetable intake was defined as consumption of fruit or vegetables less than once a day.

    Overall 17% reported inadequate intake of both vegetables and fruit.  Racial/ethnic differences in inadequate fruit and inadequate vegetable consumption were noted.106

Percentage of participants Minnesota Adolescent Health Survey reporting inadequate fruit and vegetable consumption by race

 

               Fruit

Total              % Inadequate

              Vegetable

Total                      % Inadequate

Race

       

   White

28,950

28.6

28,896

35.3

    African American

 2,625

23.4

 2,620

48.2

    Hispanic

   343

26.4

   344

41.9

    American Indian

   560

29.3

   553

42.7

    Asian American

  1,061

27.0

 1,055

28.0

Neumark-Sztainer D, Story M, Resnick MD, & Blum RW. (1996) Correlates of fruit and vegetable consumption among adolescents. Preventive Medicine 25: 497-505

  • Asian Americans were less likely to report inadequate fruit and vegetable consumption. 

  • African Americans were most likely to report adequate fruit consumption but also most likely to report inadequate vegetable consumption.

  • Navajo Health and Nutrition Survey, 1991-1992; Zuni adolescents:

Mean Intake of Macronutrients by 12-19 year old participants in the Navajo Health and Nutrition Survey, 1991-1992 and Zuni 11th and 12th graders

 

Navajo Females  (N = 73)

Zuni Females (N = 31)

Navajo Males (N =89)

Zuni Males

(N= 19)

Energy from fat(%)

31

34

33

38

Energy from saturated fat(%)

11

12

11

13

Cholesterol, (mg)

316

170

388

281

Fiber (g)

17

10

14

16

Cole SM, Teufel-Shone NI, Ritenbaugh CK, Yzenbaard RA & Cockerham DL. (2001). Dietary intake of Zuni adolescents. J Am Diet Assoc 101:802-806.

  • Overall, mean intakes of fat and cholesterol exceeded current dietary recommendations while fiber was less than recommended. The one exception was Zuni females' intake of cholesterol, which met recommendations.107,108
  • 70% of Zuni males and 80% of Zuni females did not consume the minimum recommended amount of fiber. 107
  • For Zuni males sugared drinks accounted for 13%, salty snacks 8% and sweets 3.7% of total calories.  For Zuni females sugared drinks accounted for 20.7% , salty snacks 4.1%, and sweets 4.9% of total calories.
  • Navajo adolescents consumed 15% of total calories as foods of low nutritional value such as soft drinks, candy, desserts and snacks, and added fat.108 

The major factors impacting food choices among the Navajo living on the Reservation are cost, availability and shelf life.

  • Cereals are consumed infrequently because they are expensive
  • Dairy products are consumed infrequently due to their perishability and to lactose intolerance.
  • Fresh fruits and vegetables were consumed on average less than two times daily due to their perishability, lack of availability, and cost.
  • Youth Risk Behavior Surveillance Program

The Youth Risk Behavior Surveillance Program noted ethnic differences in fruit and vegetable and dairy food consumption.

Percentage of high school students who had eaten > 5 servings of fruit and vegetables and drank > 3 glasses of milk during the past week by race/ethnicity, YRBS

 

Eaten > 5 servings of fruit and vegetables

Drank > 3glasses of milk

White, non Hispanic

22.5

19.6

Black , non Hispanic

27.8

10.8

Hispanic

24.0

15.8

Centers for Disease Control and Prevention. CDC Surveillance Summaries. January 9, 2000. MMWR 2000;49(No. SS-5).


 Mean Nutrient Intake of Males by Age and Race/ethnicity, NHANES 1988-1991

 

Calcium (mg)

Iron (mg)

Vitamin C (mg)

Vitamin A (RE)

 

White

Black

Mexican American

White

Black

Mexican American

White

Black

Mexican American

White

Black

Mexican American

3-5 years

928

757

984

12.48

10.58

12.88

97

124

115

907

728

850

6-11 years

1041

834

1037

14.84

12.18

14.59

107

120

108

962

879

926

12-15 years

1179

870

1135

20.50

13.23

17.44

129

131

125

1349

839

1147

16-19 years

1373

1076

1128

19.22

15.16

17.61

99

170

126

992

833

931

Mean Nutrient Intake of Females by Age and Race/ethnicity, NHANES 1988-1991

 

Calcium (mg)

Iron (mg)

Vitamin C (mg)

Vitamin A (RE)

 

White

Black

Mexican American

White

Black

Mexican American

White

Black

Mexican American

White

Black

Mexican American

3-5 years

827

727

829

11.29

12.13

10.31

97

118

106

764

536

731

6-11 years

879

755

958

13.08

11.89

12.50

84

112

100

835

548

766

12-15 years

801

737

872

12.13

12.79

12.14

79

109

98

676

512

778

16-19 years

866

725

816

11.90

12.89

12.38

90

117

114

925

477

672

Alaimo K, McDowell MA, Briefel RR, Bischof AM, Caughman CR, Loria CM & Johnson CL (1994). Dietary intake of vitamins, minerals, and fiber of persons ages 2 months and over in the United States:  Third National Health and Nutrition Examination Survey, Phase I. 1988-1991. Advance data from vital and health statistics, no 258, Hyattsville, Maryland: National Center for Health Statistics

A study in Worcester, Massachusetts provides insight into the dietary practices of Vietnamese adolescents (Weicha et al, 2001)

Food intake of Worcester, Massachusetts adolescents by race, 1993.

 

White

(N = 1615

Black

(N = 263)

Hispanic

(N = 545)

Vietnamese

(N = 226)

Fruit intake

    Mean servings daily

1.24

1.12

1.17

1.68

Vegetable intake

    Mean servings daily

1.24

1.04

0.93

1.43

 Dairy food intake

    Mean servings daily 

2.33

2.01

2.07

1.29

Fruits and vegetables

    %  > 5 servings daily

15.1

11.1

10.8

28.4

 Dairy products

    % > 3 servings daily

27.4

26.7

27.2

8.5

Weicha JM, Kink A, Wiecha J,&  Herber J. Differences in dietary patterns of Vietnamese, White, African-American, and Hispanic adolescents in Worcester, Mass. J. Am Diet Assoc 101:248-251.

paperAdolescents in this survey consumed less fruits and vegetables than adolescents in the CSFII

  • Fruit intake of Vietnamese youth was 35.5% and vegetable intake 15.3% greater than white youth. 

  • Dairy product intake of Vietnamese youth was 44% less than white youth.

  • Acculturation was associated with greater fruit and vegetable intake among Vietnamese youth.  

  • Although their diet was higher in fruit and vegetables than any other racial/ethnic group, 72% of Vietnamese adolescents did not meet the recommended five servings per day.

Diet and Blood Pressure

Dietary patterns may put urban minority adolescents at risk for the development of hypertension according to two studies.

  • Adolescents with blood pressure (BP) measurements at or above the 90th percentile with low folate intakes also had lower intakes of potassium, calcium, magnesium, and vitamins in comparison with at risk adolescents with high folate intakes.  Even with similar sodium intakes and BMI measurements, the low folate intake group had higher BP levels than the adolescents in the high folate intake group.  Thus, diets low in multiple nutrients may contribute to the development of hypertension in at risk adolescents.  Similar observations were noted in the DASH trial.109  

  • Simons-Morton et al110 reported inverse associations between calcium, magnesium, and potassium and BP.  After controlling for all nutrients, total fat was directly and fiber inversely associated with blood pressure. 

Dieting and other weight control practices

booksBody weight dissatisfaction, dieting and disordered eating behaviors (use of vomiting, diet pills, laxatives or diuretics) are prevalent among children and adolescents and vary by race/ethnicity.111,112,113,114,115,116,117

Normal weight White girls were more likely than Black girls to consider themselves overweight and want to weigh less. 

Additionally normal weight Black girls were more likely than White girls to want to gain weight. 

This may reflect cultural differences in ideal body shape.  In general, African American women do not perceive overweight as unhealthy or unattractive.116

Adolescents using extreme weight control behaviors have less healthy diet and exercise patterns and are more likely to engage in other health compromising behaviors.112,113   For example, dieting up to once a week doubled the risk of initiating smoking.111

Percentage of high school students who engaged in behaviors associated with weight control by sex and race/ethnicity, Youth Risk Behavior Survey, 1999

 

Exercised to lose weigh or to avoid gaining weight

Ate less food, fewer calories, or foods low in fat to lose weight or to avoid gaining weight

Fasted to lose weight or to avoid gaining weight

Took diet pills, powders, or liquids to lose weight or avoid gaining weight

Took laxatives or vomited to lose weight or to avoid gaining weight

 

Female

Male

Female

Male

Female

 Male

Female

Male

Female

Male

White

70.0

48.7

60.3

25.1

19.0

5.7

11.7

4.5

7.0

1.5

Black

58.6

47.6

43.4

25.3

17.7

8.9

6.9

4.1

6.8

3.4

Hispanic

65.1

55.5

51.0

29.3

17.6

6.6

11.0

6.4

6.4

4.0

Total

67.4

49.5

56.1

25.0

18.8

6.4

10.9

4.4

7.5

2.2

Centers for Disease Control and Prevention. CDC Surveillance Summaries. January 9, 2000. MMWR 2000;49(No. SS-5).

Overall, white adolescents are more likely to engage in weight control behaviors than black or Hispanics.

Health Disparities

Overview

Increasing Diversity

Causes of Disparities

Prevalence

Food Insecurity

Breastfeeding

Physical Activity

Dietary Habits

Infant Mortality

Cardiovascular Disease

Type 2 Diabetes

References

PowerPoint Presentation

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