Abstract

The objective of this study was to determine the prevalence and socio-demographic predictors of malnutrition in two urbanized economically active provinces (Gauteng N = 733, Western Cape N = 593) in South Africa. A multistage stratified cluster random sampling design was applied. Fieldworkers visited homes, measured children aged 1-<10-years old (N = 1326) and administered a questionnaire (mother/primary caregiver). In under-five year old children (N = 674) 21.6% were stunted [height-for-age z-score < −2 SD], 5.6 % underweight [weight-for-age z-score < −2 SD], 10.3% overweight (body mass index-for-age z-score) (BAZ)> +2 SD ≤ +3 SD] and 7.0% obese (BAZ > +3 SD). In 5–<10-year olds (N = 626) 6.7% were stunted, 6.8% underweight, 13.4% overweight and 6.8% obese. Stunting and overweight in the same child was present in 5.7% under-five year olds and 1.7% in 5–<10-year olds. Multiple logistic regression analyses identified having a mother with a post-grade 12 qualification (OR = 0.34) and having an obese mother (OR 0.46) as protectors and being in the under-five age group (OR = 3.73) as a risk factor for stunting. Being in the under-five age group was also a risk factor for a BAZ > 1 (OR 2.39), while being in the third wealth quintile was protective (OR = 0.62). Results indicate that stunting and overweight/obesity are still present at concerning levels, especially in the under-five age group.

Highlights

  • Many countries in sub-Saharan Africa, including South Africa, have both a high prevalence of stunting in children and of overweight and obesity in children and adults, referred to as the double burden of malnutrition [1]

  • In order to contribute to further insights into trends in the profile of malnutrition over time in the vulnerable under-five year age group, and children in the 5–

  • height-for-age z scores (HAZ), height-for-age z-scores; weight-for-age z scores (WAZ), weight-for-age z-scores; body mass index z scores (BAZ), body mass index-for-age z-scores; mid-upper arm circumference z scores (MUACZ), mid-upper arm circumference z-scores; 95% CI, 95% confidence intervals

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Summary

Introduction

Many countries in sub-Saharan Africa, including South Africa, have both a high prevalence of stunting in children and of overweight and obesity in children and adults, referred to as the double burden of malnutrition [1]. Stunted children may become obese adults, who in turn appear to be more at risk of developing non-communicable diseases (NCDs) in adulthood [2]. Undernutrition and overnutrition have been found in the same household [3]; a study in Benin, for example, showed that child protein energy malnutrition coexisted with maternal overweight/obesity in 16.2% of 148 households in poor neighborhoods. The authors theorized that child malnutrition and maternal overweight could both stem from poor socioeconomic conditions, lack of sanitation, and. Res. Public Health 2019, 16, 3334; doi:10.3390/ijerph16183334 www.mdpi.com/journal/ijerph

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