GPT and gestational diabetes: Compared to women with low ALT (<median 12 U/L at either CV1 or CV2) and BMI <25 kg/m2, women with high ALT levels (≥median 12 U/L) and BMI ≥25 kg/m2 had a 4.20- and 3.29-fold increased risk of GDM at CV1 and CV2, respectively.