Comparison 8. Oestrogen versus placebo: all multiparae, unfavourable cervix.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
3 Caesarean section	1	50	Risk Ratio (M‐H, Fixed, 95% CI)	1.0 [0.07, 15.12]
4 Serious neonatal morbidity or perinatal death	1	50	Risk Ratio (M‐H, Fixed, 95% CI)	1.0 [0.07, 15.12]
11 Instrumental vaginal delivery	1	50	Risk Ratio (M‐H, Fixed, 95% CI)	1.0 [0.07, 15.12]
16 Perinatal death	1	50	Risk Ratio (M‐H, Fixed, 95% CI)	0.33 [0.01, 7.81]