1996
DOI: 10.1590/s0034-89101996000100009
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Abstract: A survey of 754 preschool children was undertaken in the urban areas of seven small towns of the semi-arid region of Bahia, Northeastern Brazil, to determine the prevalence of vitamin A deficiency, as well as its association with variables such as a age, family income, mother's schooling and dietary adequacy in vitamin A. Protein energy malnutrition and anemia were also studied and are reported separately. The clinical ophthalmological examination did not reveal any signs or symptoms of xerophthalmia amongst t… Show more

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Cited by 29 publications
(26 citation statements)
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“…With regards to age group, the homogeneous behavior of VAD prevalence in the children in this study does not confi rm a trend observed in other studies with pre-school children, in which younger children showed lower levels of serum retinol. 17,22 These children's eating habits are characterized by diets of diluted milk and high percentages of carbohydrates. These eating habits, together with early weaning and reduced consumption of food sources of carotenoids, may explain the insuffi cient retinol serum levels in children in lower age groups.…”
Section: Discussionmentioning
confidence: 99%
“…With regards to age group, the homogeneous behavior of VAD prevalence in the children in this study does not confi rm a trend observed in other studies with pre-school children, in which younger children showed lower levels of serum retinol. 17,22 These children's eating habits are characterized by diets of diluted milk and high percentages of carbohydrates. These eating habits, together with early weaning and reduced consumption of food sources of carotenoids, may explain the insuffi cient retinol serum levels in children in lower age groups.…”
Section: Discussionmentioning
confidence: 99%
“…Evidence of hypovitaminosis A and xerophthalmia has been documented, especially in the northeastern region of Brazil (Dricot D'ans et al, 5 1988; Santos et al, 11 1996; INAN/MS-IMIP, 7 1998). Even so, the data available on the prevalence of vitamin A deficiency in this region are sparse.…”
Section: Introductionmentioning
confidence: 99%
“…Other studies did not find an association between compromised nutritional status and VAD. 32 Vitamin A is involved in the pathogenesis of anemia through different mechanisms: stimulus to the growth and differentiation of erythrocyte progenitor cells, maximization of the immune response, reduction of anemia associated with infection and mobilization of hepatic iron reserves. 33 The interaction between iron and vitamin A may be one of the factors implicated in the high prevalence of anemia observed among the analyzed children (51.3%), after resolution of the infectious process, although no association was found in our study between inadequate retinol levels and hemoglobin level.…”
Section: Discussionmentioning
confidence: 99%