GPT and diabetes mellitus: In the multivariable model, older age, single/divorced, high education level, hypertension, moderate alcohol consumption, drinking tea, high BMI, central obesity, hyper-TG, hyper-TC, hypo-HDL-C, and abnormal ALT remained significant, while diabetes, history of CHD, visceral fat obesity, hyper-LDL-C, positive urine protein result, and abnormal AST did not (Table 3).