GPT and diabetes mellitus: Univariate analyses showed that diabetes in prediabetic patients was not associated with TC, LDL-c, BUN, and Scr (all P > 0.05) but was positively correlated with age, BMI, SBP, DBP, TG/HDL-c ratio, AST, ALT, current smoking, and family history of diabetes (all P < 0.05; Table 3).