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Public Health Nutr. 2009 Feb;12(2):203-7. doi: 10.1017/S1368980008002656. Epub 2008 Jun 12.

Underweight, overweight and obesity among South African adolescents: results of the 2002 National Youth Risk Behaviour Survey.

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1
Medical Research Council, City of Cape Town, Western Cape, South Africa.

Abstract

OBJECTIVE:

The present paper reports the prevalence of underweight, overweight and obesity by gender, ethnicity and grade, among participants in a 2002 national survey among South African school-going youth that included height and weight measurements.

DESIGN:

A stratified two-stage sample was used. Nationally representative rates of underweight, overweight and obesity were calculated using weighted survey data and compared using chi2 analysis.

SETTING:

In all, 9224 grade 8 to grade 11 students, present at school in selected classes within selected South African government-funded schools in all nine provinces, participated in this study. Most of the students were between 13 and 19 years of age.

RESULTS:

Higher rates of underweight were observed for males than females as well as for black and 'coloured' than white students. Within each gender group, black and 'coloured' students had significantly higher rates of underweight than their white counterparts. Higher percentages of females than males were overweight and obese, overall and among black students. Furthermore, white male students had significantly higher rates of overweight than their black and 'coloured' counterparts. Among females, black and white students had significantly higher rates than 'coloured' students. Students in higher grades showed significantly lower rates of underweight and higher rates of overweight.

DISCUSSION:

These data confirm that South Africa, a developing nation in socio-economic transition, is experiencing both undernutrition and overnutrition. However, these problems are disproportionately distributed by gender, socio-economics and ethnicity. Continued surveillance of nutritional status may be one important component of a national strategy to prevent and control malnutrition.

PMID:
18547451
DOI:
10.1017/S1368980008002656
[Indexed for MEDLINE]

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