OBJECTIVE: To determine the prevalence of obesity and reference percentile curves of body mass index (BMI; kg/m2) in Japanese adults.DESIGN: Cross-sectional nationwide surveys (The National Nutrition Survey, Japan) carried out in 1990–1994. A sample of 23 556 males and 28 751 females aged 15–84 y was used for this analysis.RESULTS: The prevalence of grades… (More)