Variable selection
VTDR, high-density lipoprotein, T2DM, TG
PubMed, EMBASE, and other websites were searched using keywords such as “T2DM” and “VTDR” to identify relevant literature and determine the variables to be included in the study. The following patient data were extracted: ID number, Age, Gender, body mass index (BMI), systolic blood pressure (SBP), diastolic blood pressure (DBP), duration of diabetes(Duration), smoking status(Smoking), alcohol consumption(Alcohol), alanine aminotransferase (ALT), aspartate aminotransferase (AST), blood urea nitrogen (BUN), serum creatinine (SCr), uric acid (UA), total cholesterol (TC), triglycerides (TG), high-density lipoprotein (HDL), low-density lipoprotein cholesterol (LDL-C), blood glucose (GLU), glycated hemoglobin (HbA1C), and whether VTDR occurred. The extracted data were organized and merged into one file based on the patient ID number.