Findings

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Evidence found and GRADE certainty

4,815 questions · 6,211 findings · 638 reviews · Headline outcomes only

No studies found 1,052 · 16.9%GRADE not reported 441 · 7.1%Very low 1,700 · 27.4%Low 1,651 · 26.6%Moderate 1,070 · 17.2%High 297 · 4.8%

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Double‐balloon catheter vs vaginal PGE2

Caesarean section · women with a previous caesarean section (subgroup of all women in the study) with intact fetal membranes, cephalic position and…

It is very uncertain whether double‐balloon catheter changes caesarean section compared with vaginal PGE2 (very low certainty).

1 finding from 1 review

Vaginal isosorbide mononitrate vs Foley catheter

Vaginal delivery not achieved within 24 hours · pregnant women with 1 previous lower segment caesarean section at 37 weeks and beyond, with a BS of ≤ 6, intact membranes, reactive…

Vaginal isosorbide mononitrate may leads to higher vaginal delivery not achieved within 24 hours compared with foley catheter (low certainty).

1 finding from 1 review

Vaginal isosorbide mononitrate vs Foley catheter

Caesarean section · pregnant women with 1 previous lower segment caesarean section at 37 weeks and beyond, with a BS of ≤ 6, intact membranes, reactive…

It is very uncertain whether vaginal isosorbide mononitrate changes caesarean section compared with foley catheter (very low certainty).

1 finding from 1 review

Vaginal PGE2 vs intravenous (IV) oxytocin

Caesarean section · women with one previous lower segment caesarean section and requiring labour induction due to prolonged pregnancy or pre‐eclampsia,…

Vaginal PGE2 showed no clear difference in caesarean section compared with intravenous (IV) oxytocin (low certainty).

1 finding from 1 review

80 mL vs Foley catheter

Vaginal delivery not achieved within 24 hours · pregnant women who previously had a lower segment CS and now have a singleton cephalic presentation after at least 36 completed weeks, not…

80 mL showed no clear difference in vaginal delivery not achieved within 24 hours compared with 30 mL Foley catheter (moderate certainty).

1 finding from 1 review