GPT and diabetes mellitus: There were no significant differences between the CAD and control groups in age, body mass index (BMI), hypertension, diabetes mellitus, blood platelet (PLT), creatinine (Cr), alanine aminotransferase (ALT), aspartate transaminase (AST), total cholesterol (TC), total glyceride (TG), and high-density lipoprotein cholesterol (HDL-C) (P > 0.05).