GPT and coronary artery disorder: CAD: coronary artery disease, BMI: body mass index, SBP: systolic blood pressure, DBP: diastolic blood pressure, T_CHO: total cholesterol, HDL_C: high-density lipoprotein cholesterol, LDL_C: low-density lipoprotein cholesterol, TG: triglyceride, BUN: blood urea nitrogen, ALT: alanine aminotransferase