GPT and type 2 diabetes mellitus: To improve the accuracy of eNAPRT in the prediction of advanced fibrosis, we built a multiple stepwise regression model, including eNAPRT > 2.76 (by Youden index), together with the following variables: age, type 2 diabetes, male sex, ALT, AST, BMI, gamma-glutamyl transferase, total cholesterol, high-density lipoprotein (HDL) cholesterol, and triglycerides (Table 5).