Document Detail


Children's nutrient intake variability is affected by age and body weight status according to results from a Brazilian multicenter study.
MedLine Citation:
PMID:  24418249     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
A major challenge in nutritional studies focusing on children is estimating "true" intake because the type and amount of foods eaten change throughout growth and development, thereby affecting the variability of intake. The present study investigated the hypothesis that age and body weight status affect the ratio of the within- and between-subject variation of intakes (VR) as well as the number of days of dietary assessment (D) of energy and nutrients. A total of 2,981 Brazilian preschoolers aged 1-6 years were evaluated in a cross-sectional study. Weighed food records and estimated food records were used to assess dietary intake inside and outside of school. Within- and between-subject variations of intakes were estimated by multilevel regression models. VR and D were calculated according to age group and body weight status. VR ranged from 1.17 (calcium) to 8.70 (fat) in the 1- to 2-year-old group, and from 1.47 (calcium) to 8.95 (fat) in the 3- to 6-year-old group. Fat, fiber, riboflavin, folate, calcium, phosphorus, and iron exhibited greater VR and D in the 3- to 6-year-old group. For energy, carbohydrates, and protein, both within- and between-subject variation increased with increasing age. In both body weight groups, calcium showed the lowest VR. Fat showed the highest VR in nonoverweight/obese children (9.47), and fiber showed the highest VR in overweight/obese children (8.74). For most nutrients, D = 7 was sufficient to correctly rank preschoolers into tertiles of intake. In conclusion, age and body weight status affected the within- and between-subject variation and the VR of energy and nutrient intakes among Brazilian preschool children.
Authors:
Michelle A de Castro; Eliseu Verly-; Mauro Fisberg; Regina M Fisberg
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Publication Detail:
Type:  Journal Article     Date:  2013-09-28
Journal Detail:
Title:  Nutrition research (New York, N.Y.)     Volume:  34     ISSN:  1879-0739     ISO Abbreviation:  Nutr Res     Publication Date:  2014 Jan 
Date Detail:
Created Date:  2014-01-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8303331     Medline TA:  Nutr Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  74-84     Citation Subset:  IM    
Copyright Information:
© 2013.
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