Additionally, in an observational study conducted in three hospitals in Saudi Arabia, a reduction in HbA1c in pregnant women with T2D of 0.71%, 1.2%, and 1.57% was observed at 3, 6, and 12 months, respectively, after starting CGM and a reduction of 0.81% and 1.3% was observed at 3 and 6 months, respectively, after starting CGM in patients with GDM who were using insulin (42). This evidence concerns the gene INS and gestational diabetes.