Cosson et al. (91) showed in a study performed in a large cohort of more than 18 000 deliveries that more than 30% of diagnosed GDM are at low risk for GDM. This was the direct consequence of the lowered glycaemia threshold in the diagnostic criteria. Curiously, diagnosed low risk women had more GDM-related events compared with women without GDM. In a recent study designed to evaluate retrospectively the IADPSG criteria in about 23 000 pregnancies, there was a significant 1.5% increase in GDM prevalence when using the new criteria without any significant increase in maternal or fetal outcomes except for neonatal hypoglycaemia which was signi- ficantly higher (92).