Vitamin A status of pregnant women assessed by a biochemical indicator and a simplified food frequency questionnaire (1999)
- Authors:
- Autor USP: RONDO, PATRICIA HELEN DE CARVALHO - FSP
- Unidade: FSP
- Subjects: GRAVIDEZ (SANGUE); CONSUMO DE ALIMENTOS; VITAMINA A (SANGUE); DIETA
- Language: Inglês
- Abstract: The aim of this study was to compare plasma concentrations of vitamin A in 710 women after delivery, with a simplified Food Frequency Questinnaire (FFQ). Vitamin A was determined in plasma, by HPLC. The FFQ included 55 foods, and was based on the typical diet of the low socioeconomic families in the Southeast of Brazil. For calculation purposes, first were identified all potential sources of retinol and carotenoids; the portion sizes being assigned to each food item on the basis of a previous study in the same area. Daily, weekly and monthly frequencies of consumption of foods with high, moderate and low concentrations of vitamin A were grouped according to the IVACG recommendations (1) in usual pattern of food consumption (UPF) scores. Pregnant women were allocated by these scores in 3 different categories (high, moderate and low) according to their risk of developing vitamin A intake of 800 RE/day (5600 RE/week) (7) and the basal requirement of 370 RE/day for pregnant women (8). 1.3 percent of the women had plasma concentrations of vitamin A <-0.70 umol/l, 10.2 percent between 0.71 - 1.05 umol/l and 88.5 percent > 1.05 umol/l. According to the score categories, 49.5 percent of the women were at low risk for vitamin A deficiency, and 50.5 percent were at moderate risk. There was a weak statistically significant correlation between the plasma concentrations of vitamin A and the score categories (r=0.11; p=0.005). Our results indicate that the FFQ does not provide avery precise information on vitamin A intake, and the insensitivity of plasma concentrations to consumption of vitamin A. However, by using a simple score based on the FFQ, we were able to predict that the majority of the mothers were not at high risk for vitamin A deficiency
- Imprenta:
- Source:
- Título do periódico: Archivos Latinoamericanos de Nutrición
- Volume/Número/Paginação/Ano: v. 49, n. 4, p. 322-325, 1999
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ABNT
RONDÓ, Patrícia Helen de Carvalho e SLATER VILLAR, Betzabeth e TOMKINS, Andrew Marvin. Vitamin A status of pregnant women assessed by a biochemical indicator and a simplified food frequency questionnaire. Archivos Latinoamericanos de Nutrición, v. 49, n. 4, p. 322-325, 1999Tradução . . Acesso em: 18 abr. 2024. -
APA
Rondó, P. H. de C., Slater Villar, B., & Tomkins, A. M. (1999). Vitamin A status of pregnant women assessed by a biochemical indicator and a simplified food frequency questionnaire. Archivos Latinoamericanos de Nutrición, 49( 4), 322-325. -
NLM
Rondó PH de C, Slater Villar B, Tomkins AM. Vitamin A status of pregnant women assessed by a biochemical indicator and a simplified food frequency questionnaire. Archivos Latinoamericanos de Nutrición. 1999 ; 49( 4): 322-325.[citado 2024 abr. 18 ] -
Vancouver
Rondó PH de C, Slater Villar B, Tomkins AM. Vitamin A status of pregnant women assessed by a biochemical indicator and a simplified food frequency questionnaire. Archivos Latinoamericanos de Nutrición. 1999 ; 49( 4): 322-325.[citado 2024 abr. 18 ] - Avaliação do estado nutricional em ferro
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