Comparison 12. (3.15) Amniotomy alone versus vaginal prostaglandin: primiparae, intact membranes, favourable cervix.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
2 Uterine hyperstimulation with fetal heart rate changes	1	110	Risk Ratio (M‐H, Fixed, 95% CI)	0.0 [0.0, 0.0]
3 Caesarean section	1	110	Risk Ratio (M‐H, Fixed, 95% CI)	1.33 [0.31, 5.68]
7 Oxytocin augmentation	1	110	Risk Ratio (M‐H, Fixed, 95% CI)	2.33 [1.33, 4.10]
8 Uterine hyperstimulation without fetal heart rate changes	1	110	Risk Ratio (M‐H, Fixed, 95% CI)	0.0 [0.0, 0.0]
10 Epidural analgesia	1	110	Risk Ratio (M‐H, Fixed, 95% CI)	3.33 [0.97, 11.46]
11 Instrumental vaginal delivery	1	110	Risk Ratio (M‐H, Fixed, 95% CI)	0.79 [0.39, 1.58]
12 Meconium‐stained liquor	1	110	Risk Ratio (M‐H, Fixed, 95% CI)	1.71 [0.73, 4.03]
14 Neonatal intensive care unit admission	1	110	Risk Ratio (M‐H, Fixed, 95% CI)	1.25 [0.35, 4.41]
16 Perinatal death	1	110	Risk Ratio (M‐H, Fixed, 95% CI)	0.0 [0.0, 0.0]
18 Maternal side‐effects (all)	1	110	Risk Ratio (M‐H, Fixed, 95% CI)	2.0 [0.53, 7.60]
22 Maternal pyrexia	1	110	Risk Ratio (M‐H, Fixed, 95% CI)	2.0 [0.53, 7.60]
23 Postpartum haemorrhage	1	110	Risk Ratio (M‐H, Fixed, 95% CI)	1.67 [0.42, 6.64]
28 Antibiotics to baby	1	110	Risk Ratio (M‐H, Fixed, 95% CI)	1.25 [0.35, 4.41]