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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 3.1 Mortality to discharge | 1 | Risk Ratio (M‐H, Fixed, 95% CI) | Subtotals only | |
| 3.2 Severe intraventricular haemorrhage (Papile grade 3/4) | 1 | Risk Ratio (M‐H, Fixed, 95% CI) | Subtotals only | |
| 3.3 Necrotising enterocolitis | 1 | Risk Ratio (M‐H, Fixed, 95% CI) | Subtotals only | |
| 3.4 Hypotension requiring medical treatment | 1 | Risk Ratio (M‐H, Fixed, 95% CI) | Subtotals only |
