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- Title
Validation of self-reported dietary intakes in children age 5 to 7 years.
- Authors
Nordj, Michele; Shoff, Suzanne; Zhumin Zhang; Davis, Lisa; HuiChuan Lai
- Abstract
Objective: Few studies have examined the agreement between self-reported energy intake (EI) and measured total energy expenditure (TEE) and estimated energy requirement (EER) in young children. Our objectives are to validate 3-day food record (FR) and food frequency questionnaire (FFQ) by TEE, to compare TEE with EER, and to determine if EER can be used to adjust self-reported EI. Methods: Prospective annual assessment of dietary intake by the Harvard FFQ and FR was initiated at age 5 years in the Childhood Origins of Asthma (COAST) study. TEE was measured by doubly-labeled water. EER was estimated by equations from the 2005 Dietary Reference intakes, assuming low physical activity. Data from 39 children aged 5-7 years were analyzed. Results: El averaged 1485 ± 244 kcal from FR and 2098 ± 479 kcal from FFQ. TEE averaged 1460 ± 195 kcal and EER averaged 1476 ± 101 kcal. El from FR was similar to TEE (p=0.61); however, El from FFQ was 45 ± 4% higher than TEE (p<0.0001). EER was positively correlated with TEE (r² = 0.52). When FFQ calories were adjusted by TEE, EER, or per 1000 kcal, intakes of vitamins C and E, calcium, iron, but not vitamin A, were similar to those reported by FR. Conclusions: FR assessed EI more accurately than FFQ in children age 5-7 years. After energy adjustment, FFQ and FR agree well for most micronutrients. EER can serve as a substitute for direct measures of TEE to adjust self-reported El.
- Subjects
INGESTION; CHILDREN; BIOENERGETICS; CALORIC expenditure; ENERGY metabolism in children
- Publication
FASEB Journal, 2007, Vol 21, Issue 5, pA709
- ISSN
0892-6638
- Publication type
Article