Everything you ever needed to know about gestational diabetes

Valerie Holmes, Claire Draffin

Research output: Contribution to specialist publicationFeatured article


Gestational diabetes mellitus (GDM) is glucose intolerance that begins or is first identified during pregnancy. GDM is associated with increased perinatal morbidity.1 In the long term women with GDM have a seven-fold risk of developing type 2 diabetes in later life compared to pregnancies with normal blood glucose levels.2 Recent research has centred on investigating the effect of treating GDM on pregnancy outcome, and defining the diagnostic criteria for GDM. This research has led to the recent recommendations from the International Association of Diabetes and Pregnancy Study Groups (IADPSG) for diagnosis of GDM.3 Prevalence of GDM has increased in recent years, alongside an increased prevalence of type 2 diabetes in the background population. Additionally, the adoption of IADPSG criteria has even further increased GDM prevalence almost three-fold in some populations.4


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