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Title: RELATIONSHIP OF BODY COMPOSITION AND SELF-REPORTED INTAKE OF SELECTED NUTRIENTS IN OVERWEIGHT LOWER MISSISSIPPI DELTA AFRICAN AMERICAN GIRLS

Author
item WEBER, J - ACHRI
item HALL, R - ACHRI- DATA ANALYSIS CTR
item SZETO, K - ACHRI
item GOOLSBY, S - ACHRI
item SIMPSON, P - ACHRI- DATA ANALYSIS CTR

Submitted to: International Society for Behavioral Nutrition and Physical Activity
Publication Type: Abstract Only
Publication Acceptance Date: 3/14/2003
Publication Date: 7/17/2003
Citation: WEBER, J.L., HALL, R.A., SZETO, K.L., GOOLSBY, S., SIMPSON, P.M. RELATIONSHIP OF BODY COMPOSITION AND SELF-REPORTED INTAKE OF SELECTED NUTRIENTS IN OVERWEIGHT Lower Mississippi Delta AFRICAN AMERICAN GIRLS. International Society for Behavioral Nutrition and Physical Activity proceedings. Quebec, Canada. 2003. p. 19.

Interpretive Summary:

Technical Abstract: This study compared the measurement of percent body fat by skinfolds (SF) and bioelectrical impedance (BIA) to dual energy x-ray absorptiometry (DXA), and evaluated self-reported nutrient intake by BMI and percent body fat in 8-11 year old African American girls. 56 girls were recruited based on self-reported BMI >85th percentile. Subsequently, BMI, and percent body fat by 4 methods, were measured. Additionally, the girls self-reported their dietary intake for the 24-hour period of their stay at the Arkansas Children's Nutrition Center, and simultaneously their dietary intake was recorded by trained dieticians using direct observation. Foods and quantities were recorded prior to serving to the girls, and plate waste was measured following each meal and snack. Accuracy of the girls' self-reported intake was within +10% of the criterion for all nutrients. Mean % fat by DXA was 33%; for SF method 1 (SF1; triceps and calf) 36%; for SF method 2 (SF2; triceps and subscapular) 38%; and for BIA 25%. Concordance correlations (CC) for SF1, SF2 and BIA with DXA were 0.75, 0.70, and 0.36, respectively. When BMI was measured, 7 girls were '85th percentile (misreported as >85th), and their mean % body fat was more consistent by all 4 methods, ranging from 19-22%. However, agreement between their reported and observed nutrient intakes were lower than for girls with BMI >85th percentile (correctly self-reported). For subjects measured to be <30% body fat (n=16), both SF methods were more highly correlated with DXA than for subjects >30% fat (n=40), and better agreement was found between reported and observed nutrient intakes.