Assessing the incidence of gestational diabetes and neonatal outcomes using the IADPSG guidelines in comparison with the Carpenter and Coustan criteria in a Belgian general hospital.

We have conducted a systematic universal screening for gestational diabetes mellitus (GDM) since 2008, following the criteria outlined by the International Association of Diabetes and Pregnancy Study Group (IADPSG) since 2011. However, we recently replaced the IADPSG standards with those established by the Belgian French Language Gynecologists and Obstetricians Group (GGOLFB). These new criteria indicate GDM when fasting plasma glucose (FPG) is ≥0·92 g/l at the beginning of pregnancy or when an orally provoked hyperglycaemia test (75 g of glucose) between the twenty-fourth and twenty-eighth week results in an FPG of ≥0·92 g/l and/or ≥1·80 g/l after 1 hour and/or ≥1·53 g/l after 2 hours.