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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 1 Mortality | 1 | Hazard Ratio (Fixed, 95% CI) | 0.98 [0.77, 1.23] | |
| 2 Morbidity | 1 | Risk Ratio (M‐H, Random, 95% CI) | Subtotals only | |
| 2.1 Number of cancer events | 1 | 3107 | Risk Ratio (M‐H, Random, 95% CI) | 0.99 [0.84, 1.15] |
