In contrast, in the subgroup of women with a pre-pregnancy BMI of 24 or higher, the GLO1 rs1130534 codominant heterozygous model significantly increased the risk of GDM (TA vs. TT+ AA: OR = 2.424; 95% CI: 1.048-5.607; P = 0.039). This evidence concerns the gene GLO1 and gestational diabetes.