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Abstracto
Serum Selenium Levels and Nutritional Status of School Children from an HIV Prevention Programme in Zimbabwe
Patience Kuona, Grace Mashavave, Gwendoline Q Kandawasvika, Janet Dzangare, Mufarowashe Masanganise, Precious Chandiwana, Marshall Munjoma, Kusum Nathoo and Babill Stray-Pedersen
Nutrition programmes in resource poor settings mainly focus on children under the age of five years and this has resulted in limited information on nutritional and micronutrient status of school children in areas with high burden of HIV infection. This cross-sectional study assessed the prevalence of, and factors associated with stunting, thinness, overweight, underweight and selenium deficiency in school aged children from a high HIV burden peri-urban area in Zimbabwe, a low income country. Seven to 10 year old children from a prevention of mother-to-child transmission of HIV cohort had their serum selenium levels determined by mass spectrometry in a cross-sectional study. Height, weight, mid-upper-arm and head circumferences were measured to determine the prevalence of stunting, thinness, underweight and wasting. WHO growth standards were used to define the children's nutritional status.
A total of 318 children including 21 (7%) HIV infected were assessed. The prevalence of stunting, thinness and underweight was 12%, 4% and 8% respectively. The prevalence of Selenium deficiency (serum Selenium <0.89 μmol/L) was 48% and it was found to be high in all the children despite their HIV status. Stunting was associated with HIV infection and orphan hood. There was no difference in height or weight between the HIV uninfected (exposed and unexposed) children who were in comparison both taller and heavier than the HIV infected children. Chronic malnutrition and selenium deficiency were prevalent in this cohort of children. Further studies are recommended to guide the need for selenium supplementation. Setting up health programmes to identify malnutrition in school aged children should be a priority.