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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 1 Total mortality | 4 | Hazard Ratio (Fixed, 95% CI) | 1.11 [0.96, 1.27] | |
| 1.1 Mixed beam (neutron/photon) versus photon | 1 | Hazard Ratio (Fixed, 95% CI) | 1.12 [0.92, 1.36] | |
| 1.2 Neutron versus photon | 3 | Hazard Ratio (Fixed, 95% CI) | 1.10 [0.90, 1.34] |
