Prevalência e fatores associados com deficiência de vitamina A em crianças atendidas em creches públicas do Sudoeste da Bahia

Abstract

Objectives: to determine the prevalence of vitamin A deficiency and factors associated to children attending public day care centers in the Southwest of Bahia. Methods: a cross-sectional study involving 303 children aged 24 to 60 months attending public day care centers in the city of Vitória da Conquista, BA. A questionnaire was applied for the parents or legal guardians to answer and the children´s height and weight were measured. Blood samples were collected to analyze serum retinol taking in consideration the values below 0.70 μmol/L as inadequate. The vaccination card was verified in relation to the adequacy of vitamin A supplementation. Food weighting was done to evaluate the consuming of lipids and vitamin A. The association between the variables and vitamin A deficiency was verified by logistic regression. Results: the prevalence of inadequate serum retinol levels was 13.1% (1.99 ± 1.17 μmol/L); 4.3% were low height and 1.2% of thinness. Most children (91.7%) had their vitamin A doses outdated on their vaccination cards. The variables associated to vitamin A deficiency were children aged less or equal to 34 months (OR: 2.66, 95% CI: 1.23 - 5.74) and maternal age was less than 26 years (OR: 2.39; 95% CI: 1.11 - 5.17). Conclusions: vitamin A deficiency configures as a moderate public health problem in children attending public day care centers in the Southwest of Bahia.