It is widely acknowledged that being overweight is associated with an amplified risk of disease, particularly if body fat is deposited within the abdomen, as suggested by a high waist-circumference measurement. This chapter aims to estimate the burden of disease attributable to overweight and obesity as indicated by a high body mass index (BMI), by age, sex and subregion. 1 BMI, which is calculated as weight (kg) divided by height squared (m 2), was chosen as a simple measurement of body weight in relation to height. While increases in both body fat and lean tissue cause increments in BMI, relationships between body weight and health are conventionally expressed in terms of BMI rather than body fat. Data on population weight and height, often collected as part of general medical or economic surveys, were obtained, typically from specially-commissioned analyses from ministries of health. Where these data sets or published representative information were lacking, earlier data published for eac
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