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Search review questions

Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

Limit to evidence status or GRADE (optional)

3,601 questions in 252 reviews · Pregnancy and Childbirth

current versions
No studies 726 · 20.2%Ungraded 421 · 11.7%Very low 828 · 23%Low 993 · 27.6%Moderate 486 · 13.5%High 147 · 4.1%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

QuestionEffectEvidenceStatus / GRADE
Pre‐mixed insulin (70 NPH/30 REG) vs self‐mixed split dose insulin (Different insulin regimens with similar insulin types used within the regimen)
Birth trauma including shoulder dystocia, nerve palsy, or fracture · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Pre‐mixed insulin (70 NPH/30 REG) vs self‐mixed split dose insulin (Different insulin regimens with similar insulin types used within the regimen)
Composite outcome measure of neonatal morbidity · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Insulin injected with a Novolin pen vs insulin injected with a needle or syringe (Different insulin regimens with similar insulin types used within the regimen)
Macrosomia · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
RR 0.21 [0.03, 1.76]1 study · 93 participantsVery low
Insulin injected with a Novolin pen vs insulin injected with a needle or syringe (Different insulin regimens with similar insulin types used within the regimen)
Perinatal death · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Insulin injected with a Novolin pen vs insulin injected with a needle or syringe (Different insulin regimens with similar insulin types used within the regimen)
Pre‐eclampsia · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Insulin injected with a Novolin pen vs insulin injected with a needle or syringe (Different insulin regimens with similar insulin types used within the regimen)
Caesarean section 4 · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
RR 0.38 [0.15, 0.97]1 study · 93 participantsVery low
Insulin injected with a Novolin pen vs insulin injected with a needle or syringe (Different insulin regimens with similar insulin types used within the regimen)
Fetal anomaly · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Insulin injected with a Novolin pen vs insulin injected with a needle or syringe (Different insulin regimens with similar insulin types used within the regimen)
Birth trauma including shoulder dystocia, nerve palsy, or fracture · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Insulin injected with a Novolin pen vs insulin injected with a needle or syringe (Different insulin regimens with similar insulin types used within the regimen)
Composite outcome measure of neonatal morbidity · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Insulin Aspart (+ NPH) vs human insulin (+ NPH insulin)
Macrosomia · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extractedNRNo studies
Lispro vs regular insulin (Different insulin types within similar insulin regimens)
Pre‐eclampsia · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
RR 0.68 [0.35, 1.3]1 study · 33 participantsVery low
Insulin Aspart (+ NPH) vs human insulin (+ NPH insulin)
Perinatal death · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extractedNRNo studies
Insulin Aspart (+ NPH) vs human insulin (+ NPH insulin)
Pre‐eclampsia · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extractedNRNo studies
Insulin Aspart (+ NPH) vs human insulin (+ NPH insulin)
Caesarean section · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extractedNRNo studies
Insulin Aspart (+ NPH) vs human insulin (+ NPH insulin)
Fetal anomaly · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extractedNRNo studies
Insulin Aspart (+ NPH) vs human insulin (+ NPH insulin)
Birth trauma including shoulder dystocia, nerve palsy and fracture · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extractedNRNo studies
Insulin Aspart (+ NPH) vs human insulin (+ NPH insulin)
Composite outcome measure of neonatal morbidity · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extractedNRNo studies
Insulin Detemir + prandial insulin Aspart vs NPH insulin + prandial insulin Aspart (Different insulin types within similar insulin regimens)
Macrosomia · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Insulin Detemir + prandial insulin Aspart vs NPH insulin + prandial insulin Aspart (Different insulin types within similar insulin regimens)
Perinatal death · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Insulin Detemir + prandial insulin Aspart vs NPH insulin + prandial insulin Aspart (Different insulin types within similar insulin regimens)
Pre‐eclampsia · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Insulin Detemir + prandial insulin Aspart vs NPH insulin + prandial insulin Aspart (Different insulin types within similar insulin regimens)
Caesarean section · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Lispro vs regular insulin (Different insulin types within similar insulin regimens)
Caesarean section · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
RR 0.59 [0.25, 1.39]1 study · 33 participantsVery low
Insulin Detemir + prandial insulin Aspart vs NPH insulin + prandial insulin Aspart (Different insulin types within similar insulin regimens)
Fetal anomaly (major) · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
RR 3.15 [0.33, 29.67]1 study · 162 participantsVery low
Insulin Detemir + prandial insulin Aspart vs NPH insulin + prandial insulin Aspart (Different insulin types within similar insulin regimens)
Birth trauma including shoulder dystocia, nerve palsy, or fracture · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Insulin Detemir + prandial insulin Aspart vs NPH insulin + prandial insulin Aspart (Different insulin types within similar insulin regimens)
Composite outcome measure of neonatal morbidity · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Lispro vs regular insulin (Different insulin types within similar insulin regimens)
Fetal anomaly · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
RR 0.35 [0.02, 8.08]1 study · 33 participantsVery low
Lispro vs regular insulin (Different insulin types within similar insulin regimens)
Birth trauma, including shoulder dystocia, nerve palsy, and fracture · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extracted1 study · 33 participantsVery low
Lispro vs regular insulin (Different insulin types within similar insulin regimens)
Composite outcome measure of neonatal morbidity · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Human insulin vs animal insulin (Different insulin types within similar insulin regimens)
Macrosomia · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
RR 0.22 [0.01, 4.3]1 study · 42 participantsVery low
Human insulin vs animal insulin (Different insulin types within similar insulin regimens)
Perinatal death · pregnant women with pre‐existing diabetes
Different insulin types and regimens for pregnant women with pre‐existing diabetes (2017) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Oral anti‐diabetic pharmacological therapies vs placebo ‐ maternal outcomes
Hypertensive disorders of pregnancy ‐ (any type) · women diagnosed with gestational diabetes; 24‐30 weeks' gestation; singleton pregnancy.
Oral anti‐diabetic pharmacological therapies for the treatment of women with gestational diabetes (2017) · Cochrane
RR 1.24 [0.81, 1.9]1 study · 375 participantsVery low
Oral anti‐diabetic pharmacological therapies vs placebo ‐ neonatal outcomes
Death or serious morbidity composite ‐ not reported · infants of women diagnosed with gestational diabetes
Oral anti‐diabetic pharmacological therapies for the treatment of women with gestational diabetes (2017) · Cochrane
no estimate extractedNRNo studies
Oral anti‐diabetic pharmacological therapies vs placebo ‐ neonatal outcomes
Neonatal hypoglycaemia · infants of women diagnosed with gestational diabetes
Oral anti‐diabetic pharmacological therapies for the treatment of women with gestational diabetes (2017) · Cochrane
RR 1.97 [0.36, 10.62]1 study · 375 participantsVery low
Oral anti‐diabetic pharmacological therapies vs placebo ‐ neonatal outcomes
Adiposity (neonate, child, adult) ‐ not measured · infants of women diagnosed with gestational diabetes
Oral anti‐diabetic pharmacological therapies for the treatment of women with gestational diabetes (2017) · Cochrane
no estimate extractedNRNo studies
Oral anti‐diabetic pharmacological therapies vs placebo ‐ neonatal outcomes
Diabetes (child, adult) ‐ not measured · infants of women diagnosed with gestational diabetes
Oral anti‐diabetic pharmacological therapies for the treatment of women with gestational diabetes (2017) · Cochrane
no estimate extractedNRNo studies
Oral anti‐diabetic pharmacological therapies vs placebo ‐ neonatal outcomes
Neurosensory disability in later childhood ‐ not measured · infants of women diagnosed with gestational diabetes
Oral anti‐diabetic pharmacological therapies for the treatment of women with gestational diabetes (2017) · Cochrane
no estimate extractedNRNo studies
Metformin vs glibenclamide ‐ maternal outcomes
Hypertensive disorders of pregnancy · women diagnosed with gestational diabetes
Oral anti‐diabetic pharmacological therapies for the treatment of women with gestational diabetes (2017) · Cochrane
RR 0.7 [0.38, 1.3]3 studies · 508 participantsModerate
Metformin vs glibenclamide ‐ maternal outcomes
Caesarean section · women diagnosed with gestational diabetes
Oral anti‐diabetic pharmacological therapies for the treatment of women with gestational diabetes (2017) · Cochrane
RR 1.2 [0.83, 1.72]4 studies · 554 participantsLow
Metformin vs glibenclamide ‐ maternal outcomes
Development of type 2 diabetes ‐ not measured · women diagnosed with gestational diabetes
Oral anti‐diabetic pharmacological therapies for the treatment of women with gestational diabetes (2017) · Cochrane
no estimate extractedNRNo studies
Metformin vs glibenclamide ‐ maternal outcomes
Perineal trauma · women diagnosed with gestational diabetes
Oral anti‐diabetic pharmacological therapies for the treatment of women with gestational diabetes (2017) · Cochrane
RR 1.67 [0.22, 12.52]2 studies · 308 participantsLow
Metformin vs glibenclamide ‐ maternal outcomes
Return to pre‐pregnancy weight ‐ not measured · women diagnosed with gestational diabetes
Oral anti‐diabetic pharmacological therapies for the treatment of women with gestational diabetes (2017) · Cochrane
no estimate extractedNRNo studies
Oral anti‐diabetic pharmacological therapies vs placebo ‐ maternal outcomes
Caearean section · women diagnosed with gestational diabetes; 24‐30 weeks' gestation; singleton pregnancy.
Oral anti‐diabetic pharmacological therapies for the treatment of women with gestational diabetes (2017) · Cochrane
RR 1.03 [0.79, 1.34]1 study · 375 participantsVery low
Metformin vs glibenclamide ‐ maternal outcomes
Postnatal depression ‐ not measured · women diagnosed with gestational diabetes
Oral anti‐diabetic pharmacological therapies for the treatment of women with gestational diabetes (2017) · Cochrane
no estimate extractedNRNo studies
Metformin vs glibenclamide ‐ maternal outcomes
Induction of labour · women diagnosed with gestational diabetes
Oral anti‐diabetic pharmacological therapies for the treatment of women with gestational diabetes (2017) · Cochrane
RR 0.81 [0.61, 1.07]1 study · 159 participantsLow
Metformin vs glibenclamide ‐ neonatal outcomes
Large‐for‐gestational age · Infants of women diagnosed with gestational diabetes
Oral anti‐diabetic pharmacological therapies for the treatment of women with gestational diabetes (2017) · Cochrane
RR 0.67 [0.24, 1.83]2 studies · 246 participantsLow
Metformin vs glibenclamide ‐ neonatal outcomes
Perinatal mortality · Infants of women diagnosed with gestational diabetes
Oral anti‐diabetic pharmacological therapies for the treatment of women with gestational diabetes (2017) · Cochrane
RR 0.92 [0.06, 14.55]2 studies · 359 participantsVery low
Metformin vs glibenclamide ‐ neonatal outcomes
Death or serious morbidity composite · Infants of women diagnosed with gestational diabetes
Oral anti‐diabetic pharmacological therapies for the treatment of women with gestational diabetes (2017) · Cochrane
RR 0.54 [0.31, 0.94]1 study · 159 participantsLow
Metformin vs glibenclamide ‐ neonatal outcomes
Neonatal hypoglycaemia · Infants of women diagnosed with gestational diabetes
Oral anti‐diabetic pharmacological therapies for the treatment of women with gestational diabetes (2017) · Cochrane
RR 0.86 [0.42, 1.77]4 studies · 554 participantsLow
Metformin vs glibenclamide ‐ neonatal outcomes
Adiposity ‐ not measured · Infants of women diagnosed with gestational diabetes
Oral anti‐diabetic pharmacological therapies for the treatment of women with gestational diabetes (2017) · Cochrane
no estimate extractedNRNo studies
Metformin vs glibenclamide ‐ neonatal outcomes
Diabetes ‐ not measured · Infants of women diagnosed with gestational diabetes
Oral anti‐diabetic pharmacological therapies for the treatment of women with gestational diabetes (2017) · Cochrane
no estimate extractedNRNo studies