GPT and obesity due to melanocortin 4 receptor deficiency: Age, SBP, DBP, TC, TG, LDL-c, HDL-c, alanine aminotransferase, SCr, SUN, FBG, sex, smoking, drinking, hypertension, diabetes, hyperlipemia, geographic region, and ethnic group differed significantly between the low BMI, normal BMI, and overweight and obesity groups (all P < 0.001).