מצגת מניעת עישוןmoranisIn 2007, 22.8% of Chinese adolescents were overweight or obese, a significant increase from 13.5% in 2002. Rates of overweight and obesity were highest in Beijing, Tianjin, and Shanghai. The prevalence of overweight and obesity increased with age from 6.4% for those aged 13-14 to 27.2% for those aged 17.