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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 1 Vaginal delivery not achieved in 24 hours | 1 | 50 | Risk Ratio (M‐H, Fixed, 95% CI) | 1.14 [0.95, 1.38] |
| 2 Caesarean section | 4 | 374 | Risk Ratio (M‐H, Random, 95% CI) | 1.30 [0.76, 2.22] |
