383 patients aged 18 years or above admitted in the Third People’s Hospital of Shenzhen was included in the current study. Of them, 53·1% were normal weight, 4·2% were underweight, 32·0% were overweight, and 10·7% were obese. There were more men in the obesity group than those in other obesity groups (78·1% versus 12·5% to 59·4%, P<0·001).