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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 1.1 Overall survival | 9 | 1802 | Hazard Ratio (IV, Random, 95% CI) | 5.09 [2.64, 9.81] |
| 1.2 Progression‐free survival | 14 | 2079 | Hazard Ratio (IV, Random, 95% CI) | 4.90 [3.47, 6.90] |
