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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
Intensity of glycaemic control for women with gestational diabetes mellitus: tight glycaemic targets vs less‐tight glycaemic targets (child (as neonate, child, adult) outcomes)
Perinatal (fetal and neonatal) mortality · children (as neonate, child, adult) of women with gestational diabetes mellitus
Different intensities of glycaemic control for women with gestational diabetes mellitus (2023) · Cochrane
no estimate extracted2 studies · 1499 participantsLow
Intensity of glycaemic control for women with gestational diabetes mellitus: tight glycaemic targets vs less‐tight glycaemic targets (child (as neonate, child, adult) outcomes)
Large‐for‐gestational‐age · children (as neonate, child, adult) of women with gestational diabetes mellitus
Different intensities of glycaemic control for women with gestational diabetes mellitus (2023) · Cochrane
RR 0.96 [0.72, 1.29]3 studies · 1556 participantsModerate
Intervention NR
Perinatal death · women with an abnormal cardiotocograph (CTG) in labour
Fetal scalp stimulation for assessing fetal well‐being during labour (2023) · Cochrane
no estimate extracted1 study · 50 participantsUngraded
Intervention NR
Caesarean section (all indications) Â · women with an abnormal CTG in labour
Fetal scalp stimulation for assessing fetal well‐being during labour (2023) · Cochrane
RR 0.83 [0.59, 1.18]1 study · 327 participantsVery low
Intervention NR
Neonatal encephalopathy  · women with an abnormal CTG in labour
Fetal scalp stimulation for assessing fetal well‐being during labour (2023) · Cochrane
no estimate extracted1 study · 327 participantsUngraded
Intervention NR
Assisted vaginal birth (all indications) Â · women with an abnormal CTG in labour
Fetal scalp stimulation for assessing fetal well‐being during labour (2023) · Cochrane
RR 1.43 [0.78, 2.6]1 study · 327 participantsVery low
Intervention NR
Spontaneous vaginal birth  · women with an abnormal CTG in labour
Fetal scalp stimulation for assessing fetal well‐being during labour (2023) · Cochrane
RR 1.01 [0.85, 1.21]1 study · 327 participantsVery low
Intervention NR
Maternal acceptability of procedure  · women with an abnormal CTG in labour
Fetal scalp stimulation for assessing fetal well‐being during labour (2023) · Cochrane
no estimate extracted1 study · 327 participantsUngraded
Intervention NR
Neurodevelopmental disability at >/= 12 months · women with an abnormal cardiotocograph (CTG) in labour
Fetal scalp stimulation for assessing fetal well‐being during labour (2023) · Cochrane
no estimate extracted1 study · 50 participantsUngraded
Intervention NR
Caesarean section (all indications) · women with an abnormal cardiotocograph (CTG) in labour
Fetal scalp stimulation for assessing fetal well‐being during labour (2023) · Cochrane
RR 0.38 [0.16, 0.92]1 study · 50 participantsVery low
Intervention NR
Neonatal encephalopathy  · women with an abnormal cardiotocograph (CTG) in labour
Fetal scalp stimulation for assessing fetal well‐being during labour (2023) · Cochrane
no estimate extracted1 study · 50 participantsUngraded
Intervention NR
Assisted vaginal birth (all indications) Â · women with an abnormal cardiotocograph (CTG) in labour
Fetal scalp stimulation for assessing fetal well‐being during labour (2023) · Cochrane
RR 1.44 [0.76, 2.75]1 study · 50 participantsVery low
Intervention NR
Spontaneous vaginal birth  · women with an abnormal cardiotocograph (CTG) in labour
Fetal scalp stimulation for assessing fetal well‐being during labour (2023) · Cochrane
RR 2.33 [0.68, 8.01]1 study · 50 participantsVery low
Intervention NR
Maternal acceptability of procedure(s) · women with an abnormal cardiotocograph (CTG) in labour
Fetal scalp stimulation for assessing fetal well‐being during labour (2023) · Cochrane
no estimate extracted1 study · 50 participantsUngraded
Intervention NR
Perinatal death  · women with an abnormal CTG in labour
Fetal scalp stimulation for assessing fetal well‐being during labour (2023) · Cochrane
no estimate extracted1 study · 327 participantsUngraded
Intervention NR
Neurodevelopmental disability at >/= 12 months  · women with an abnormal CTG in labour
Fetal scalp stimulation for assessing fetal well‐being during labour (2023) · Cochrane
no estimate extracted1 study · 327 participantsUngraded
Sildenafil citrate vs placebo or no therapy
All‐cause mortality · pregnant women with fetal growth restriction
Interventions affecting the nitric oxide pathway versus placebo or no therapy for fetal growth restriction… (2023) · Cochrane
RR 1.01 [0.8, 1.27]5 studies · 516 participantsModerate
Sildenafil citrate vs nitroglycerin
All‐cause mortality · pregnant women with fetal growth restriction
Interventions affecting the nitric oxide pathway versus placebo or no therapy for fetal growth restriction… (2023) · Cochrane
no estimate extracted1 study · 23 participantsLow
Sildenafil citrate vs nitroglycerin
Fetal mortality · pregnant women with fetal growth restriction
Interventions affecting the nitric oxide pathway versus placebo or no therapy for fetal growth restriction… (2023) · Cochrane
no estimate extracted1 study · 23 participantsLow
Sildenafil citrate vs nitroglycerin
Neonatal mortality · pregnant women with fetal growth restriction
Interventions affecting the nitric oxide pathway versus placebo or no therapy for fetal growth restriction… (2023) · Cochrane
no estimate extracted1 study · 23 participantsLow
Sildenafil citrate vs placebo or no therapy
Fetal mortality · pregnant women with fetal growth restriction
Interventions affecting the nitric oxide pathway versus placebo or no therapy for fetal growth restriction… (2023) · Cochrane
RR 0.82 [0.6, 1.12]5 studies · 516 participantsModerate
Sildenafil citrate vs placebo or no therapy
Neonatal mortality · pregnant women with fetal growth restriction
Interventions affecting the nitric oxide pathway versus placebo or no therapy for fetal growth restriction… (2023) · Cochrane
RR 1.45 [0.9, 2.33]5 studies · 397 participantsModerate
Tadalafil vs placebo or no therapy
All‐cause mortality · pregnant women with fetal growth restriction
Interventions affecting the nitric oxide pathway versus placebo or no therapy for fetal growth restriction… (2023) · Cochrane
RR 0.2 [0.02, 1.6]1 study · 87 participantsLow
Tadalafil vs placebo or no therapy
Fetal mortality · pregnant women with fetal growth restriction
Interventions affecting the nitric oxide pathway versus placebo or no therapy for fetal growth restriction… (2023) · Cochrane
RR 0.11 [0.01, 1.96]1 study · 87 participantsLow
Tadalafil vs placebo or no therapy
Neonatal mortality · pregnant women with fetal growth restriction
Interventions affecting the nitric oxide pathway versus placebo or no therapy for fetal growth restriction… (2023) · Cochrane
RR 0.89 [0.06, 13.7]1 study · 83 participantsLow
Nitroglycerin vs placebo or no therapy
All‐cause mortality · pregnant women with fetal growth restriction
Interventions affecting the nitric oxide pathway versus placebo or no therapy for fetal growth restriction… (2023) · Cochrane
no estimate extracted1 study · 23 participantsLow
Nitroglycerin vs placebo or no therapy
Fetal mortality · pregnant women with fetal growth restriction
Interventions affecting the nitric oxide pathway versus placebo or no therapy for fetal growth restriction… (2023) · Cochrane
no estimate extracted1 study · 23 participantsLow
Nitroglycerin vs placebo or no therapy
Neonatal mortality · pregnant women with fetal growth restriction
Interventions affecting the nitric oxide pathway versus placebo or no therapy for fetal growth restriction… (2023) · Cochrane
no estimate extracted1 study · 23 participantsLow
Summary of findings table ‐ Breastfeeding support only vs usual care
Stopping breastfeeding (any) at 6 months · healthy breastfeeding women with healthy term babies
Support for healthy breastfeeding mothers with healthy term babies (2022) · Cochrane
RR 0.93 [0.89, 0.97]30 studies · 14610 participantsModerate
Summary of findings table ‐ Breastfeeding support only vs usual care
Stopping breastfeeding at 12 months · healthy breastfeeding women with healthy term babies
Support for healthy breastfeeding mothers with healthy term babies (2022) · Cochrane
RR 0.95 [0.9, 1]2 studies · 1311 participantsLow
Summary of findings table ‐ Support plus vs usual care
Stopping breastfeeding (any) at 6 months · healthy breastfeeding women with healthy term babies
Support for healthy breastfeeding mothers with healthy term babies (2022) · Cochrane
RR 0.94 [0.91, 0.97]11 studies · 4879 participantsModerate
Summary of findings table ‐ Support plus vs usual care
Stopping exclusive breastfeeding at 6 months · healthy breastfeeding women with healthy term babies
Support for healthy breastfeeding mothers with healthy term babies (2022) · Cochrane
RR 0.79 [0.7, 0.9]13 studies · 7650 participantsLow
Summary of findings table ‐ Support plus vs usual care
Stopping breastfeeding (any) at 4‐6 weeks · healthy breastfeeding women with healthy term babies
Support for healthy breastfeeding mothers with healthy term babies (2022) · Cochrane
RR 0.94 [0.82, 1.08]6 studies · 2325 participantsModerate
Summary of findings table ‐ Support plus vs usual care
Stopping exclusive breastfeeding at 4‐6 weeks · healthy breastfeeding women with healthy term babies
Support for healthy breastfeeding mothers with healthy term babies (2022) · Cochrane
RR 0.73 [0.57, 0.95]6 studies · 2402 participantsVery low
Summary of findings table ‐ Support plus vs usual care
Stopping breastfeeding (any) at 2 months · healthy breastfeeding women with healthy term babies
Support for healthy breastfeeding mothers with healthy term babies (2022) · Cochrane
RR 0.92 [0.79, 1.07]4 studies · 2089 participantsModerate
Summary of findings table ‐ Support plus vs usual care
Stopping exclusive breastfeeding at 2 months · healthy breastfeeding women with healthy term babies
Support for healthy breastfeeding mothers with healthy term babies (2022) · Cochrane
RR 0.9 [0.78, 1.03]9 studies · 4537 participantsVery low
Summary of findings table ‐ Support plus vs usual care
Stopping breastfeeding (any) at 3‐4 months · healthy breastfeeding women with healthy term babies
Support for healthy breastfeeding mothers with healthy term babies (2022) · Cochrane
RR 0.97 [0.81, 1.15]5 studies · 2064 participantsLow
Summary of findings table ‐ Support plus vs usual care
Stopping exclusive breastfeeding at 3‐4 months · healthy breastfeeding women with healthy term babies
Support for healthy breastfeeding mothers with healthy term babies (2022) · Cochrane
RR 0.86 [0.75, 1]10 studies · 4766 participantsLow
Summary of findings table ‐ Support plus vs usual care
Stopping breastfeeding (any) at 12 months · healthy breastfeeding women with healthy term babies
Support for healthy breastfeeding mothers with healthy term babies (2022) · Cochrane
RR 0.96 [0.91, 1]2 studies · 1431 participantsModerate
Summary of findings table ‐ Breastfeeding support only vs usual care
Stopping exclusive breastfeeding at 6 months · healthy breastfeeding women with healthy term babies
Support for healthy breastfeeding mothers with healthy term babies (2022) · Cochrane
RR 0.9 [0.88, 0.93]40 studies · 16332 participantsModerate
Summary of findings table ‐ Support plus vs usual care
Stopping breastfeeding (any) at 9 months ‐ not reported · healthy breastfeeding women with healthy term babies
Support for healthy breastfeeding mothers with healthy term babies (2022) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Breastfeeding support only vs usual care
Stopping breastfeeding (any) at 4‐6 weeks · healthy breastfeeding women with healthy term babies
Support for healthy breastfeeding mothers with healthy term babies (2022) · Cochrane
RR 0.88 [0.79, 0.97]36 studies · 11413 participantsModerate
Summary of findings table ‐ Breastfeeding support only vs usual care
Stopping exclusive breastfeeding at 4‐6 weeks · healthy breastfeeding women with healthy term babies
Support for healthy breastfeeding mothers with healthy term babies (2022) · Cochrane
RR 0.83 [0.76, 0.9]42 studies · 14544 participantsModerate
Summary of findings table ‐ Breastfeeding support only vs usual care
Stopping breastfeeding (any) at 2 months · healthy breastfeeding women with healthy term babies
Support for healthy breastfeeding mothers with healthy term babies (2022) · Cochrane
RR 0.93 [0.77, 1.11]13 studies · 3169 participantsLow
Summary of findings table ‐ Breastfeeding support only vs usual care
Stopping exclusive breastfeeding at 2 months · healthy breastfeeding women with healthy term babies
Support for healthy breastfeeding mothers with healthy term babies (2022) · Cochrane
RR 0.81 [0.74, 0.89]17 studies · 4317 participantsModerate
Summary of findings table ‐ Breastfeeding support only vs usual care
Stopping breastfeeding (any) at 3‐4 months · healthy breastfeeding women with healthy term babies
Support for healthy breastfeeding mothers with healthy term babies (2022) · Cochrane
RR 0.87 [0.81, 0.93]32 studies · 12054 participantsModerate
Summary of findings table ‐ Breastfeeding support only vs usual care
Stopping exclusive breastfeeding at 3‐4 months · healthy breastfeeding women with healthy term babies
Support for healthy breastfeeding mothers with healthy term babies (2022) · Cochrane
RR 0.81 [0.77, 0.85]43 studies · 11575 participantsModerate
Summary of findings table ‐ Breastfeeding support only vs usual care
Stopping breastfeeding at 9 months · healthy breastfeeding women with healthy term babies
Support for healthy breastfeeding mothers with healthy term babies (2022) · Cochrane
RR 0.87 [0.78, 0.97]1 study · 552 participantsLow
Summary of findings table ‐ Repeat dose(s) of prenatal corticosteroid vs single course
A1: Fetal or neonatal or infant death (< 1 year of age) – all fetuses randomised · the fetus/neonate/infant
Repeat doses of prenatal corticosteroids for women at risk of preterm birth for improving neonatal health… (2022) · Cochrane
RR 0.95 [0.73, 1.24]10 studies · 5849 participantsModerate
Summary of findings table ‐ Repeat dose(s) of prenatal corticosteroids vs single course
B3: Caesarean section – an all women · the woman
Repeat doses of prenatal corticosteroids for women at risk of preterm birth for improving neonatal health… (2022) · Cochrane
RR 1.03 [0.98, 1.09]8 studies · 4266 participantsModerate