Comparison 19. Laminaria tent versus vaginal prostaglandin E2: all women.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Uterine hyperstimulation with FHR changes	3	188	Risk Ratio (M‐H, Fixed, 95% CI)	0.11 [0.02, 0.60]
2 Caesarean section	5	263	Risk Ratio (M‐H, Fixed, 95% CI)	0.91 [0.56, 1.48]
3 Serious perinatal morbidity/perinatal death	1	80	Risk Ratio (M‐H, Fixed, 95% CI)	0.0 [0.0, 0.0]
4 Serious maternal morbidity or death	1	28	Risk Ratio (M‐H, Fixed, 95% CI)	0.0 [0.0, 0.0]
5 Uterine hyperstimulation without fetal heart rate changes	3	180	Risk Ratio (M‐H, Fixed, 95% CI)	0.22 [0.09, 0.49]
6 Epidural analgesia	1	80	Risk Ratio (M‐H, Fixed, 95% CI)	0.91 [0.74, 1.13]
7 Instrumental vaginal delivery	1	80	Risk Ratio (M‐H, Fixed, 95% CI)	0.71 [0.43, 1.17]
8 Meconium‐stained liquor	1	80	Risk Ratio (M‐H, Fixed, 95% CI)	0.14 [0.01, 2.68]
9 Apgar score < 7 at 5 minutes	2	160	Risk Ratio (M‐H, Fixed, 95% CI)	0.0 [0.0, 0.0]
10 Perinatal death	1	80	Risk Ratio (M‐H, Fixed, 95% CI)	0.0 [0.0, 0.0]
11 Maternal side effects: all	1	28	Risk Ratio (M‐H, Fixed, 95% CI)	0.29 [0.01, 6.60]
12 Maternal nausea	1	28	Risk Ratio (M‐H, Fixed, 95% CI)	0.29 [0.01, 6.60]
13 Fetal distress	3	188	Risk Ratio (M‐H, Fixed, 95% CI)	0.62 [0.34, 1.15]