Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Children's nutrient intake variability is affected by age and body weight status according to results from a Brazilian multicenter study

Full text
Author(s):
de Castro, Michelle A. [1] ; Verly-, Jr., Eliseu [2] ; Fisberg, Mauro [3] ; Fisberg, Regina M. [1]
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo, Sch Publ Hlth, Dept Nutr, BR-0124690 Sao Paulo, SP - Brazil
[2] Univ Estado Rio De Janeiro, Inst Social Med, Dept Epidemiol, Rio De Janeiro - Brazil
[3] Univ Fed Sao Paulo, Dept Pediat, Sao Paulo - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Nutrition Research; v. 34, n. 1, p. 74-84, JAN 2014.
Web of Science Citations: 6
Abstract

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 textiles 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. (C) 2014 Elsevier Inc. All rights reserved. (AU)

FAPESP's process: 08/07549-0 - Estimative of within and between-person variation of nutrients intake in pre-scholars living in different regions of Brazil
Grantee:Michelle Alessandra de Castro
Support Opportunities: Scholarships in Brazil - Master