Comparison 4.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
1 Adequate pain relief as reported by the woman | 1 | Risk Ratio (M‐H, Fixed, 95% CI) | Subtotals only | |
2 Need for additional pain relief | 1 | Risk Ratio (M‐H, Fixed, 95% CI) | Subtotals only | |
3 Maternal adverse effects | 1 | Risk Ratio (M‐H, Fixed, 95% CI) | Subtotals only |