The impact of sociodemography, diet, and body size on serum retinol in women 16-35 years of age: SANHANES-1

SOURCE: Annals of the New York Academy of Sciences
OUTPUT TYPE: Journal Article
PUBLICATION YEAR: 2017
TITLE AUTHOR(S): W.Parker, Z.J.Mchiza, R.Sewpaul, N.Job, L.Chola, M.Sithole, D.Labadarios
KEYWORDS: VITAMIN A, WEIGHT MANAGEMENT, WOMEN
DEPARTMENT: Center for Science, Technology and Innovation Indicators (CeSTii)
Print: HSRC Library: shelf number 10087

If you would like to obtain a copy of this Research Output, please contact Hanlie Baudin at researchoutputs@hsrc.ac.za.

Abstract

To determine the current vitamin A status of a nationally representative sample of women aged 16-35 years, compare it with previous national data, and determine the impact of sociodemography, diet, and body size on vitamin A status, we performed secondary analysis of data on South African women who participated in the first South African NationalHealth andNutrition Examination Survey (SANHANES-1).Vitamin A status was assessed by serumretinol, and the findings are reported as means and prevalences with corresponding 95% confidence intervals. Overall, the age-standardized vitamin A deficiency prevalence was 11.7%, a decrease from previous national data, but serum retinol levels remained lower than in other developing countries. Overall, unweighted, multilevel, multivariate logistic regression showed that vitamin A deficiency was influenced by race only (odds ratio (OR)=1.89, P=0.031), while weighted multiple logistic regression for 16- to 18-year-olds showed that vitamin A deficiency was influenced by locality (OR = 9.83, P = 0.005) and household income (intermediate (OR = 0.2, P = 0.022) and upper (OR =0.25, P = 0.049)). Despite the decreased prevalence, vitamin A deficiency remains a moderate public health problem in the country. Opportunities for targeted interventions have been identified.