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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
Yoga vs control
Sense of control in labour · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Yoga vs control
Satisfaction with childbirth experience (higher scores indicate greater satisfaction) · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extracted1 study · 66 participantsLow
Yoga vs control
Breastfeeding · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Yoga vs control
Assisted vaginal birth · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Yoga vs control
Caesarean section · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Music vs control
Pain intensity ‐ active phase (lower scores indicate less intense pain) · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extracted3 studies · 217 participantsVery low
Music vs control
Satisfaction with pain relief · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Music vs control
Sense of control in labour · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Music vs control
Satisfaction with childbirth experience · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Music vs control
Breastfeeding · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Relaxation vs usual care
Satisfaction with pain relief (higher proportion high satisfaction) · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
RR 8 [1.1, 58.19]1 study · 40 participantsVery low
Music vs control
Assisted vaginal birth · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
RR 0.41 [0.08, 2.05]1 study · 156 participantsVery low
Music vs control
Caesarean section · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
RR 0.78 [0.36, 1.7]2 studies · 216 participantsVery low
Relaxation vs usual care
Sense of control in labour · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Relaxation vs usual care
Satisfaction with childbirth experience (higher scores indicate more satisfaction) · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extracted3 studies · 1176 participantsVery low
Relaxation vs usual care
Breastfeeding · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Relaxation vs usual care
Assisted vaginal birth · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
RR 0.61 [0.2, 1.84]4 studies · 1122 participantsVery low
Relaxation vs usual care
Caesarean section · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
RR 0.73 [0.26, 2.01]4 studies · 1122 participantsVery low
Yoga vs control
Pain intensity (lower scores indicate less intense pain) · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extracted1 study · 66 participantsLow
Yoga vs control
Satisfaction with pain relief Higher scores indicate greater satisfaction with pain relief · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extracted1 study · 66 participantsLow
Summary of findings for selective ß2‐adrenergic agonist vs no tocolytic agent, whilst awaiting emergency delivery
Perinatal death or severe morbidity · women with fetal distress for whom the decision had been made to delivery by emergency caesarean section
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings for IV atosiban vs IV hexoprenaline
5‐minute Apgar score < 7 · women with severe intrapartum fetal bradycardia
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
no estimate extracted1 study · 26 participantsLow
Summary of findings for IV atosiban vs IV hexoprenaline
Umbilical artery pH · women with severe intrapartum fetal bradycardia
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
no estimate extracted1 study · 26 participantsLow
Summary of findings for IV atosiban vs IV hexoprenaline
Abnormal FHR tracing · women with severe intrapartum fetal bradycardia
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
RR 3 [0.13, 67.51]1 study · 26 participantsVery low
Summary of findings for IV fenoterol bromhydrate vs emergency delivery
Perinatal death or severe morbidity · women with a non‐reassuring fetal heart trace during labour but without uterine tachysystole
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings for IV fenoterol bromhydrate vs emergency delivery
Fetal or neonatal mortality · women with a non‐reassuring fetal heart trace during labour but without uterine tachysystole
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings for IV fenoterol bromhydrate vs emergency delivery
Caesarean delivery · women with a non‐reassuring fetal heart trace during labour but without uterine tachysystole
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
RR 1.12 [1.04, 1.22]1 study · 390 participantsModerate
Summary of findings for IV fenoterol bromhydrate vs emergency delivery
5‐minute Apgar score < 7 · women with a non‐reassuring fetal heart trace during labour but without uterine tachysystole
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
RR 1.28 [0.35, 4.68]1 study · 390 participantsLow
Summary of findings for IV fenoterol bromhydrate vs emergency delivery
Umbilical artery pH < 7.1 · women with a non‐reassuring fetal heart trace during labour but without uterine tachysystole
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
RR 0.68 [0.44, 1.05]1 study · 390 participantsLow
Summary of findings for IV fenoterol bromhydrate vs emergency delivery
Abnormal FHR tracing · women with a non‐reassuring fetal heart trace during labour but without uterine tachysystole
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings for IV hexoprenaline vs no tocolytic agent, whilst awaiting emergency delivery
Perinatal death or severe morbidity · women for whom a decision had been made to deliver by caesarean section for suspected fetal distress based on FHR…
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings for selective ß2‐adrenergic agonist vs no tocolytic agent, whilst awaiting emergency delivery
Fetal or neonatal mortality · women with fetal distress for whom the decision had been made to delivery by emergency caesarean section
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
RR 0.23 [0.01, 4.55]2 studies · 57 participantsLow
Summary of findings for IV hexoprenaline vs no tocolytic agent, whilst awaiting emergency delivery
Fetal or neonatal mortality · women for whom a decision had been made to deliver by caesarean section for suspected fetal distress based on FHR…
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
RR 0.23 [0.01, 4.55]1 study · 37 participantsLow
Summary of findings for IV hexoprenaline vs no tocolytic agent, whilst awaiting emergency delivery
Caesarean delivery · women for whom a decision had been made to deliver by caesarean section for suspected fetal distress based on FHR…
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings for IV hexoprenaline vs no tocolytic agent, whilst awaiting emergency delivery
5‐minute Apgar score < 7 · women for whom a decision had been made to deliver by caesarean section for suspected fetal distress based on FHR…
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
RR 0.24 [0.01, 4.57]1 study · 35 participantsLow
Summary of findings for IV hexoprenaline vs no tocolytic agent, whilst awaiting emergency delivery
Umbilical artery pH < 7.2 · women for whom a decision had been made to deliver by caesarean section for suspected fetal distress based on FHR…
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
RR 0.64 [0.3, 1.35]1 study · 33 participantsLow
Summary of findings for IV hexoprenaline vs no tocolytic agent, whilst awaiting emergency delivery
FHR tracing not improved · women for whom a decision had been made to deliver by caesarean section for suspected fetal distress based on FHR…
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
RR 0.43 [0.21, 0.88]1 study · 23 participantsModerate
Summary of findings for subcutaneous terbutaline vs IV magnesium sulphate
Perinatal death or severe morbidity · women with intrapartum fetal distress for whom the decision had been made to deliver by caesarean section
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings for subcutaneous terbutaline vs IV magnesium sulphate
Fetal or neonatal mortality · women with intrapartum fetal distress for whom the decision had been made to deliver by caesarean section
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings for subcutaneous terbutaline vs IV magnesium sulphate
Caesarean delivery · women with intrapartum fetal distress for whom the decision had been made to deliver by caesarean section
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings for subcutaneous terbutaline vs IV magnesium sulphate
5‐minute Apgar score < 7 · women with intrapartum fetal distress for whom the decision had been made to deliver by caesarean section
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings for subcutaneous terbutaline vs IV magnesium sulphate
Umbilical artery pH < 7.2 · women with intrapartum fetal distress for whom the decision had been made to deliver by caesarean section
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
RR 0.29 [0.07, 1.23]1 study · 46 participantsVery low
Summary of findings for selective ß2‐adrenergic agonist vs no tocolytic agent, whilst awaiting emergency delivery
Caesarean delivery · women with fetal distress for whom the decision had been made to delivery by emergency caesarean section
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings for subcutaneous terbutaline vs IV magnesium sulphate
Resolution of fetal distress on FHR tracing · women with intrapartum fetal distress for whom the decision had been made to deliver by caesarean section
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
RR 1.31 [0.97, 1.77]1 study · 46 participantsVery low
Summary of findings for subcutaneous terbutaline with continuation of oxytocic infusion vs cessation of oxytocic infusion without tocolytic agent
Perinatal death or severe morbidity · women who developed uterine hyperstimulation in labour with oxytocin augmentation, but without signs of fetal distress
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings for subcutaneous terbutaline with continuation of oxytocic infusion vs cessation of oxytocic infusion without tocolytic agent
Fetal or neonatal mortality · women who developed uterine hyperstimulation in labour with oxytocin augmentation, but without signs of fetal distress
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings for subcutaneous terbutaline with continuation of oxytocic infusion vs cessation of oxytocic infusion without tocolytic agent
Caesarean delivery · women who developed uterine hyperstimulation in labour with oxytocin augmentation, but without signs of fetal distress
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
RR 1.73 [0.68, 4.45]1 study · 28 participantsLow
Summary of findings for subcutaneous terbutaline with continuation of oxytocic infusion vs cessation of oxytocic infusion without tocolytic agent
5‐minute Apgar score < 7 · women who developed uterine hyperstimulation in labour with oxytocin augmentation, but without signs of fetal distress
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
no estimate extracted1 study · 28 participantsVery low
Summary of findings for subcutaneous terbutaline with continuation of oxytocic infusion vs cessation of oxytocic infusion without tocolytic agent
Umbilical artery pH < 7.0 · women who developed uterine hyperstimulation in labour with oxytocin augmentation, but without signs of fetal distress
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
no estimate extracted1 study · 28 participantsVery low
Summary of findings for subcutaneous terbutaline with continuation of oxytocic infusion vs cessation of oxytocic infusion without tocolytic agent
Abnormal FHR tracing · women who developed uterine hyperstimulation in labour with oxytocin augmentation, but without signs of fetal distress
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
no estimate extractedNRNo studies