期刊
PUBLIC HEALTH NUTRITION
卷 19, 期 6, 页码 1017-1026出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S1368980015002311
关键词
Usual intake; Variability; Children; Nutrient adequacy
资金
- Nestle Research Center, Lausanne, Switzerland
Objective: To compare estimates from one day with usual intake estimates to evaluate how the adjustment for within-person variability affected nutrient intake and adequacy in Mexican children. Design: In order to obtain usual nutrient intakes, the National Cancer Institute's method was used to correct the first 24 h dietary recall collected in the entire sample (n 2045) with a second 24 h recall collected in a sub-sample (n 178). We computed estimates of one-day and usual intakes of total energy, fat, Fe, Zn and Na. Setting: 2012 Mexican National Health and Nutrition Survey. Subjects: A total of 2045 children were included: 0-5.9 months old (n 182), 6-11.9 months old (n 228), 12-23.9 months old (n 537) and 24-47.9 months old (n 1098). From these, 178 provided an additional dietary recall. Results: Although we found small or no differences in energy intake (kJ/d and kcal/d) between one-day v. usual intake means, the prevalence of inadequate and excessive energy intake decreased somewhat when using measures of usual intake relative to one day. Mean fat intake (g/d) was not different between one-day and usual intake among children >6 months old, but the prevalence of inadequate and excessive fat intake was overestimated among toddlers and pre-schoolers when using one-day intake (P<0.05). Compared with usual intake, estimates from one day yielded overestimated prevalences of inadequate micronutrient intakes but underestimated prevalences of excessive intakes among children aged >6 months. Conclusions: There was overall low variability in energy and fat intakes but higher for micronutrients. Because the usual intake distributions are narrower, the prevalence of inadequate/excessive intakes may be biased when estimating nutrient adequacy if one day of data is used.
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