We also compared the distribution of the KCNJ11 rs5219 and KCNQ1 rs151290 and rs2237892 gene polymorphisms between women with GDM treated with insulin and pregnant women with normal carbohydrate tolerance, women with GDM treated with diet control and pregnant women with normal carbohydrate tolerance, as well as women with GDM treated with insulin with women with GDM treated with diet control. This evidence concerns the gene KCNQ1 and gestational diabetes.