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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 1 Most protracted measure of mortality (based on type of control arm) | 6 | 470 | Risk Ratio (M‐H, Random, 95% CI) | 1.15 [0.74, 1.79] |
| 1.1 Predominantly protocolized control strategy | 3 | 275 | Risk Ratio (M‐H, Random, 95% CI) | 1.21 [0.83, 1.75] |
| 1.2 Predominantly non‐protocolized control strategy | 3 | 195 | Risk Ratio (M‐H, Random, 95% CI) | 1.09 [0.20, 5.96] |
