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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 1 Mortality | 1 | 92 | Risk Ratio (M‐H, Fixed, 95% CI) | 1.22 [0.56, 2.67] |
| 2 Adverse event: cardiac arrhythmia | 1 | 92 | Risk Ratio (M‐H, Fixed, 95% CI) | 0.5 [0.10, 2.60] |
| 3 Adverse event: persistent hypotension | 1 | 92 | Risk Ratio (M‐H, Fixed, 95% CI) | 1.07 [0.79, 1.44] |
| 4 Adverse event: respiratory impairment | 1 | 92 | Risk Ratio (M‐H, Fixed, 95% CI) | 1.14 [0.45, 2.89] |
