Comparison 21. Oestrogen versus oxytocin alone: all women, unfavourable cervix.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
3 Caesarean section	1	66	Risk Ratio (M‐H, Fixed, 95% CI)	0.95 [0.64, 1.42]
11 Instrumental vaginal delivery	1	66	Risk Ratio (M‐H, Fixed, 95% CI)	1.0 [0.15, 6.68]