Obesity prevalence and associated physical activity levels of children aged seven to ten years in quintile five primary schools in the Nelson Mandela Metropolitan Municipality

Background: Obesity is a chronic and complex metabolic disease with associated comorbidities. The prevalence of excess body weight has risen substantially in both affluent developed countries and in developing countries worldwide. In 2008 it was estimated that 43 million children under the age of five were overweight, with developing countries accounting for 75 percent of these rates. Furthermore, with 75 percent of these children developing adulthood obesity, mortality rates due to obesity will continue to increase unless preventative interventions are implemented. Objective: To identify the prevalence of obesity and overweight among urban seven to 10 years old children in Quintile five English-medium schools in the Nelson Mandela Metropolitan municipality in the Eastern Cape, South Africa. Design and Methods: A quantitative descriptive one-way cross-sectional research design utilising random sampling was used. A total of 713 children participated in the study. A onceoff survey consisted of anthropometrical assessment of height, weight and waist circumference. To classify children into weight categories, the International Obesity Task Force cut-off values were used. A validated physical activity – related behaviour questionnaire was completed to explore and identify the daily level of physical activity expressed in MET values. Using one-way ANOVA’s and Chi-squared tests, significance between variables was analysed. Results: Overweight prevalence was 20.9 percent and obesity prevalence was 9.8 percent. A significant relationship was found between obesity and overweight levels for gender, age, ethnicity and culture. No significant relationship was found for obesity and overweight prevalence and physical activity. Conclusion: Results highlight the rising prevalence of obesity and overweight amongst urban children from affluent primary schools and the necessity for further research to explore sociocultural factors that impact on obesogenic behaviour in South African youth