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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
Oral misoprostol vs placebo/no treatment
Vaginal birth within 24 hours · women with ruptured membranes in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
no estimate extractedNRNo studies
Oral misoprostol vs vaginal dinoprostone
Uterine hyperstimulation with fetal heart rate changes · women in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 0.49 [0.4, 0.59]11 studies · 9084 participantsLow
Oral misoprostol vs vaginal dinoprostone
Oxytocin augmentation · women in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 0.9 [0.75, 1.09]12 studies · 9451 participantsVery low
Oral misoprostol vs vaginal dinoprostone
Uterine hyperstimulation without fetal heart rate changes · women in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 0.83 [0.72, 0.97]9 studies · 8171 participantsModerate
Oral misoprostol vs vaginal dinoprostone
Apgar score less than seven at five minutes · women in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 0.8 [0.52, 1.23]12 studies · 9473 participantsLow
Oral misoprostol vs vaginal dinoprostone
Admission to neonatal intensive care unit · women in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 0.8 [0.6, 1.07]11 studies · 9278 participantsLow
Oral misoprostol vs vaginal misoprostol
Vaginal birth within 24 hours · women in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 0.81 [0.68, 0.95]16 studies · 3451 participantsLow
Oral misoprostol vs vaginal misoprostol
Caesarean section · women in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 1 [0.86, 1.16]32 studies · 5914 participantsLow
Oral misoprostol vs vaginal misoprostol
Uterine hyperstimulation with fetal heart rate changes · women in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 0.69 [0.53, 0.92]25 studies · 4857 participantsLow
Oral misoprostol vs vaginal misoprostol
Oxytocin augmentation · women in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 1.28 [1.15, 1.44]28 studies · 5416 participantsLow
Oral misoprostol vs vaginal misoprostol
Uterine hyperstimulation without fetal heart rate changes · women in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 0.69 [0.49, 0.99]16 studies · 3212 participantsLow
Oral misoprostol vs placebo/no treatment
Caesarean section · women with ruptured membranes in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 0.81 [0.59, 1.11]4 studies · 594 participantsLow
Oral misoprostol vs vaginal misoprostol
Apgar score less than seven at five minutes · women in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 0.68 [0.46, 1.02]21 studies · 4438 participantsLow
Oral misoprostol vs vaginal misoprostol
Admission to neonatal intensive care unit · women in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 1.03 [0.86, 1.23]23 studies · 4450 participantsModerate
Oral misoprostol vs intravenous oxytocin
Vaginal birth within 24 hours · women in the third trimester for induction of labour (200 had ruptured membranes, 317 women had intact membranes and…
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 1.12 [0.95, 1.33]3 studies · 466 participantsLow
Oral misoprostol vs intravenous oxytocin
Caesarean section · women in the third trimester for induction of labour (200 had ruptured membranes, 317 women had intact membranes and…
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 0.67 [0.5, 0.9]6 studies · 737 participantsModerate
Oral misoprostol vs intravenous oxytocin
Uterine hyperstimulation with fetal heart rate changes · women in the third trimester for induction of labour (200 had ruptured membranes, 317 women had intact membranes and…
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 0.66 [0.19, 2.26]3 studies · 331 participantsVery low
Oral misoprostol vs intravenous oxytocin
Oxytocin augmentation · women in the third trimester for induction of labour (200 had ruptured membranes, 317 women had intact membranes and…
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 0.12 [0.02, 0.85]3 studies · 261 participantsLow
Oral misoprostol vs intravenous oxytocin
Uterine hyperstimulation without fetal heart rate changes · women in the third trimester for induction of labour (200 had ruptured membranes, 317 women had intact membranes and…
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 6 [0.76, 47.6]2 studies · 220 participantsVery low
Oral misoprostol vs intravenous oxytocin
Apgar score less than 7 at 5 minutes · women in the third trimester for induction of labour (200 had ruptured membranes, 317 women had intact membranes and…
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 2.05 [0.27, 15.7]4 studies · 527 participantsVery low
Oral misoprostol vs intravenous oxytocin
Admission to neonatal intensive care unit · women in the third trimester for induction of labour (200 had ruptured membranes, 317 women had intact membranes and…
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 0.65 [0.12, 3.45]4 studies · 517 participantsVery low
Oral misoprostol vs mechanical methods
Vaginal birth within 24 hours · women in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 1.32 [0.98, 1.79]4 studies · 1044 participantsLow
Oral misoprostol vs placebo/no treatment
Uterine hyperstimulation with fetal heart rate changes · women with ruptured membranes in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 5.15 [0.25, 105.31]3 studies · 495 participantsVery low
Oral misoprostol vs mechanical methods
Caesarean section · women in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 0.84 [0.75, 0.95]6 studies · 2993 participantsLow
Oral misoprostol vs mechanical methods
Uterine hyperstimulation with fetal heart rate changes · women in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 1.31 [0.78, 2.21]4 studies · 2828 participantsLow
Oral misoprostol vs mechanical methods
Oxytocin augmentation · women in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 0.79 [0.65, 0.95]4 studies · 2708 participantsLow
Oral misoprostol vs mechanical methods
Uterine hyperstimulation without fetal heart rate changes · women in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 0.64 [0.3, 1.38]3 studies · 2506 participantsVery low
Oral misoprostol vs mechanical methods
Apgar score less than 7 at 5 minutes · women in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 1.29 [0.69, 2.39]4 studies · 2707 participantsLow
Oral misoprostol vs mechanical methods
Admission to neonatal intensive care unit · women in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 1.24 [0.87, 1.76]5 studies · 2886 participantsLow
Oral misoprostol one‐ to two‐hourly vs oral misoprostol four‐ to six‐hourly
Vaginal birth within 24 hours · women in the third trimester for induction of labour with intact membranes
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 0.6 [0.31, 1.17]1 study · 64 participantsVery low
Oral misoprostol one‐ to two‐hourly vs oral misoprostol four‐ to six‐hourly
Caesarean section · women in the third trimester for induction of labour with intact membranes
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 1.31 [0.77, 2.22]1 study · 64 participantsVery low
Oral misoprostol one‐ to two‐hourly vs oral misoprostol four‐ to six‐hourly
Uterine hyperstimulation with fetal heart rate changes · women in the third trimester for induction of labour with intact membranes
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
no estimate extracted1 study · 64 participantsVery low
Oral misoprostol one‐ to two‐hourly vs oral misoprostol four‐ to six‐hourly
Oxytocin augmentation · women in the third trimester for induction of labour with intact membranes
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 1 [0.59, 1.68]1 study · 64 participantsVery low
Oral misoprostol vs placebo/no treatment
Oxytocin augmentation · women with ruptured membranes in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 0.46 [0.38, 0.55]3 studies · 495 participantsModerate
Oral misoprostol one‐ to two‐hourly vs oral misoprostol four‐ to six‐hourly
Uterine hyperstimulation without fetal heart rate changes · women in the third trimester for induction of labour with intact membranes
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 4 [0.92, 17.4]1 study · 64 participantsVery low
Oral misoprostol one‐ to two‐hourly vs oral misoprostol four‐ to six‐hourly
Apgar score less than 7 at 5 minutes · women in the third trimester for induction of labour with intact membranes
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
no estimate extracted1 study · 64 participantsVery low
Oral misoprostol one‐ to two‐hourly vs oral misoprostol four‐ to six‐hourly
Admission to neonatal intensive care unit · women in the third trimester for induction of labour with intact membranes
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
no estimate extracted1 study · 64 participantsVery low
Oral misoprostol 20 µg hourly titrated vs oral misoprostol 25 µg two‐hourly static
Vaginal birth within 24 hours · induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 0.97 [0.8, 1.16]2 studies · 296 participantsLow
Oral misoprostol 20 µg hourly titrated vs oral misoprostol 25 µg two‐hourly static
Caesarean section · induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 1.66 [0.63, 4.32]2 studies · 296 participantsVery low
Oral misoprostol 20 µg hourly titrated vs oral misoprostol 25 µg two‐hourly static
Uterine hyperstimulation with FHR changes · induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 3 [0.12, 72.45]1 study · 146 participantsVery low
Oral misoprostol 20 µg hourly titrated vs oral misoprostol 25 µg two‐hourly static
Oxytocin augmentation · induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 1.04 [0.85, 1.27]2 studies · 296 participantsVery low
Oral misoprostol 20 µg hourly titrated vs oral misoprostol 25 µg two‐hourly static
Uterine hyperstimulation without FHR changes · induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 4 [0.88, 18.2]1 study · 146 participantsVery low
Oral misoprostol 20 µg hourly titrated vs oral misoprostol 25 µg two‐hourly static
Apgar score less than 7 at 5 minutes · induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 1 [0.32, 3.16]2 studies · 296 participantsVery low
Oral misoprostol 20 µg hourly titrated vs oral misoprostol 25 µg two‐hourly static
Admission to NICU · induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 1.38 [0.57, 3.31]2 studies · 296 participantsVery low
Oral misoprostol vs placebo/no treatment
Uterine hyperstimulation without fetal heart rate changes · women with ruptured membranes in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 2.06 [0.39, 10.87]2 studies · 430 participantsVery low
Oral misoprostol vs placebo/no treatment
Apgar score less than 7 at 5 minutes · women with ruptured membranes in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 1.11 [0.46, 2.66]3 studies · 495 participantsVery low
Oral misoprostol vs placebo/no treatment
Admission to neonatal intensive care unit · women with ruptured membranes in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
no estimate extracted1 study · 130 participantsVery low
Oral misoprostol vs vaginal dinoprostone
Vaginal birth within 24 hours · women in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 0.93 [0.87, 1]10 studies · 8983 participantsLow
Oral misoprostol vs vaginal dinoprostone
Caesarean section · women in the third trimester for induction of labour.
Low‐dose oral misoprostol for induction of labour (2021) · Cochrane
RR 0.84 [0.78, 0.9]13 studies · 9676 participantsModerate
First trimester routine vs selective ultrasound
Maternal anxiety3 · Fetal ultrasound assessment before 24 weeks' gestation
Routine ultrasound for fetal assessment before 24 weeks' gestation (2021) · Cochrane
RR 0.8 [0.65, 0.99]1 study · 634 participantsModerate