Age

18–79

Sex

ALL

Healthy volunteers

Not accepted

Secondary obesity (Cushing's syndrome, hypothyroidism, drug-induced or genetic obesity)
End-stage severe chronic diseases (refractory heart failure, advanced malignancy, AIDS)
Severe psychiatric disorders or cognitive impairment
Pregnancy or lactation
Concurrent participation in other weight-loss or metabolic intervention trials

Chinese Overweight/Obesity Cohort: Metabolic & Comorbidity Risks