Gestational diabetes mellitus (GDM) is defined as impaired glucose tolerance with onset or first recognition during pregnancy (1). Women with GDM are at high risk for pregnancy and delivery complications including infant macrosomia, neonatal hypoglycemia, and cesarean delivery (2,3). Additionally, women who are affected by GDM have more than a 7-fold increased risk of developing type 2 diabetes 5 to 10 years after delivery (4). Children born to mothers with GDM are also more likely to develop impaired glucose tolerance (5). Risk factors for GDM include higher parity, advanced maternal age, family history of diabetes mellitus, nonwhite race, and overweight and obesity (6–8).
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