Community-based interventions to reduce overweight and obesity in China: a systematic review of the Chinese and English literature.

Overweight and obesity pose a challenge to public health in China. According to Chinese definition, 303 million Chinese are overweight (body mass index, BMI >or= 24 kg m(-2)). Among them, 73 million are clinically obese (BMI >or= 28 kg m(-2)). In line with the global trend, the rate of obesity in China continues to increase, with associated morbidity and mortality. This study was to identify interventions, which are effective in Mainland Chinese society.