Which women should we screen for gestational diabetes mellitus?

Abstract

It's unclear which women we should screen. No randomized controlled trials (RCTs) demonstrate that either universal screening or risk factor screening for gestational diabetes mellitus (GDM) prevents maternal and fetal adverse outcomes. That said, the common practice of universal screening is more sensitive than screening based on risk factors (strength of recommendation [SOR]: B, 1 randomized trial and 3 retrospective cohort studies without patient-oriented outcomes). Historic risk factors are poor predictors of GDM in a current pregnancy (SOR: C, 1 retrospective cohort study without patient-oriented outcomes).