INS and gestational diabetes: Compared to women who received an OGTT postpartum, women who did not attend the postpartum OGTT had more often a previous history of smoking before pregnancy (10.9% versus 2.4%, P = 0.021), had more often a previous history of GDM (21.7% versus 10.7%, P = 0.042), were less often breastfeeding (56.5% versus 75.7%, P = 0.011), and had a significant lower insulin sensitivity based on the OGTT during pregnancy (Table 1).