Propensity Score Matching (PSM) analysis was conducted on the irrelevant factors identified through LASSO regression analysis(including gender, history of diabetes, smoking history, family history, BMI, BUN, Scr, TG, TC, HDL-C, LDL-C, ALT, AST, FBG, 24 h SBP, 24 h DBP,MSaO2, LSaO2, BQ). Here, GPT is linked to diabetes mellitus.