TCF7L2 and gestational diabetes: The mean height of the participants was 160.2 ± 6.5 cm, their mean weight was 70.4 ± 12.3 kg, and their mean waist circumference was 90.5 ± 10.2 cm. A higher proportion of GDM-positive cases carry the TCF7L2 risk variant (63.46%) and the FTO risk variant (57.53%) compared to those without these genetic risk factors.