Results: 2701 women were included, 44% of them were obese and 15% had GDM. 63% of the women with GDM
were obese. There was significant increase in the percentage of macrosomia, P < 0.001, high birth weight, P < 0.001, CS,
P < 0.001 and preeclampsia, P < 0.001 in women with GDM and obesity compared to the reference group. Obesity
increased the estimated risk of CS delivery, odds ratio (OR) 2.16, confidence intervals (CI) 1.74-2.67. The combination
of GDM and obesity increased the risk of macrosomia OR 3.45, CI 2.05-5.81 and the risk of CS delivery OR 2.26,
CI 1.65-3.11.