gestational impaired glucose tolerance (GIGT) using National Diabetes Data Group (NDDG),
and Carpenter and Coustan (CC) criteria. METHOD: Retrospective study of the prevalence
of GDM and GIGT in 21531 pregnant women screened for GDM between 2005 and 2007
using NDDG and CC criteria. Linear trends in prevalence of GDM and GIGT by age were
calculated using logistic regression. RESULTS: Mean prevalence rates for GDM were …