The Health Examination Survey was used to collect information
about anthropometric data (i.e. height, body
weight). BMI was calculated by dividing the weight in
kilograms by the square of the height in meters and classified
into three categories according to the cut-off criteria
of WHO Western Pacific Region (BMI < 23, normal
weight; 23 ≤ BMI < 25, overweight; BMI ≥ 25, obesity).