AIP was associated with age, gender, BMI, waist circumference, race/ethnicity, education level, smoking, fasting blood glucose, HbA1c, ALT, albumin, globulin, uric acid, triglyceride, total cholesterol, HDL cholesterol, LDL cholesterol, hs-CRP, coronary heart disease, heart attack, angina, MetS, diabetes, hypertension, statin use, and diabetes medication (all p < 0.05). Here, GPT is linked to metabolic syndrome.