Screening for Gestational Diabetes: Summary of the Evidence

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Key Question	Inclusion Criteria	Number of Articles Meeting Criteria
1. Screening efficacy for maternal and fetal health outcomes	RCT Screening for GDM Maternal or infant health outcomes	0
2. Adverse health outcomes of untreated GDM	Any research design Screening for GDM Maternal or infant health outcomes	9
3. Accuracy and reliability of screening tests	Screening test for GDM Data available to calculate sensitivity and specificity Criterion standard used	13
4. Treatment for GDM: Glycemic control Antepartum surveillance	RCT Glycemic control Health outcomes RCT Surveillance or antepartum Health outcomes	9 5
5. Harms of screening and treatment	Any research design Any harm associated with screening or treatment of GDM	9
6. Costs, efficiency of screening	Any research design Costs, efficiency of screening for GDM	7

Note: All searches started with exploding "diabetes, gestational." GDM indicates gestational diabetes mellitus; RCT, randomized clinical trial.