Table 1. Inclusion Criteria, Search Strategy, and Results of Searches for Six Key Questions

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.

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