TÌNH TRẠNG THIẾU VITAMIN A VÀ MỘT SỐ YẾU TỐ LIÊN QUAN Ở TRẺ 7-9 TUỔI TẠI HUYỆN PHÚ BÌNH, TỈNH THÁI NGUYÊN, NĂM 2017

Abstract

Vitamin A deficiency is a significant public health problem in low-income and developing countries, especially Vietnam. To identify vitamin A deficiency status and related factors in students 7-9 years old, a cross-sectional descriptive study was conducted in 716 students with the height for age Z-score <-1 in Thai Nguyen. Study used the questionnaire, weighing method (weight and height) and draw blood to determin the serum retinol, ferritin, zinc and hemoglobin concentrations. The result showed the prevalence of sub-clinical vitamin A deficiency (Sub VAD) was 4.7%, at the mild level of public health significance problems, but the prevalence of risk of  Sub VAD was  39.2%. The mean serum retinol concentrations was 1.15 ± 0.45 mmol/L. The multivariate regression analysis showed a significant relationship between the zinc deficiency and underweight groups with vitamin A deficiency (p<0.01). The prevalence of Sub VAD risk among the underweight group was 1.6 times higher than the standard group (p<0.05). The prevalence of Sub VAD risk among the zinc deficiency group was 1.5 times higher than the normal group (p<0.05). Therefore, an intervention for micronutrition deficiency among school-age children is necessary, especially in stunting risk and stunting children.