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Introduction: Childhood obesity has become a serious public health problem because of its strong association with adulthood
obesity and the related adverse health consequences including development of diabetes.
Purpose: To determine the prevalence of childhood overweight and obesity and its risk factors in Bangladeshi urban primary
school children.
Materials & Methods: A cross-sectional study was conducted in primary school children. This study included 1200 participants
(aged 6 to 13 years old) collected by following a simple random procedure. On the basis of predefined scoring, subjects were
classified as underweight, normal, overweight and obese if their weight-for-height values were within the following ranges of
the recommended median values (<90.99%, 91-110%, 111-120% and >120%). Univariate and multivariate regression models
were used as appropriate.
Results: The prevalence of overweight was found to be 13.2% and obesity 17.8% among the study subjects. The prevalence of
overweight and obesity among boys were 13.6% and 22.1%, among girls these were 12.9% and 13.7%. There were significant
difference found in weight for height (p=0.015) and weight (p<0.001) between boys and girls. Mean fat intake of the obese
group was significantly higher compared to the overweight and underweight groups (p=0.008). The odds for obesity were
higher for boys than their counterparts. Study showed that associated risk factor for developing obesity was 1.65 times higher
for boys compare to the girls (p=0.003). The household monthly income and parents education has a significant risk for obesity
even after being adjusted with age, income, parent�s education and physical activities.
Conclusions: A high prevalence of overweight and obesity has been observed in urban primary school children in Bangladesh.
Positive energy balance with higher fat intake, high income and higher education level of the parents seem to be among the
major underlying factors for the increased prevalence of childhood obesity.