GPT and steatosis: In comparison to the non-NAFLD group, the severe steatosis group is more likely to be men and older, with a higher proportion of non-Hispanic blacks and Mexican Americans; with higher smoking status; and higher levels of BMI, waist circumference, AST, ALT, ALP, total cholesterol, LDL cholesterol, triglyceride, LSM, and SII but lower levels of direct HDL cholesterol and serum phosphorus.