Correlates of body mass index among primary school children in Ho Chi Minh City, Vietnam

To document the prevalence of overweight and obesity and examine associated risk factors. A cross-sectional survey was conducted in 16 primary public schools in eight districts of Ho Chi Minh City in 2016. A multistage clustering sampling method was used to collect a sample of 1806 pupils attending the first, second, and third grades (7–9 years). Age- and sex-adjusted body mass index (BMI) status was defined using International Obesity Taskforce...