Objective To construct prediction models to estimate the risks of developing type 2 diabetes mellitus( T2DM) in 3 years among the health management population in mainland China. Methods Non-diabetic people aged20 to 75 years at the baseline were chosen from Shandong Multi-center Longitudinal Cohort for Health Management to compose our cohort. Cox's proportional hazards regression model was adopted to build T2 DMprediction model. The area under the receiver operating characteristic( ROC) curve( AUC) was used...