GPT and gestational diabetes: There was no significant difference on these maternal characteristics, including age, pre-pregnancy BMI, parity, previous GDM history, family history of DM, PCOS, history of adverse pregnancy, and history of macrosomia, and laboratory biomarkers, including WBC, NEUT, RBC, HGB, HCT, PLT, MPV, ALT, AST, FBG, creatinine, uric acid, PT, APTT, FIB, and PAPP-A, between the training and the validation cohorts in both the basic and the extended populations (p > 0.05).