Outcomes of pregnancies in women with pre‐gestational diabetes mellitus and gestational diabetes mellitus; a population‐based study in New South Wales, Australia, 1998–2002

Pre-GDM and GDM continue to be associated with an increased risk of adverse maternal and neonatal outcomes; however, women with GDM have adverse outcomes less frequently. Rates of GDM and pre-GDM appear to be increasing over time. Clinicians should consider the potential for adverse outcomes, and arrange referral to appropriate services.