GPT and type 2 diabetes mellitus: After adjusting for confounding factors we found that age(HR=1.03,95%CI 1.01∼1.04,P=0.001),WC (HR=1.05,95%CI 1.03∼1.06,P<0.001),ALT(HR=1.01,95%CI 1.00∼1.01,P=0.045),HbA1c(HR=24.30,95%CI 15.69∼37.63,P<0.001),FPG(HR=1.10,95%CI 1.07∼1.12,P<0.001), fatty liver(HR=1.86,95%CI 1.37∼2.53,P<0.001), were independent risk factors of T2DM.Current smoking group was positively associated with incidence of T2DM compared to Never Smoking Group (HR=1.61,95%CI 1.16∼2.23,P=0.004).