| Two‐stage meta‐analysis based on random‐effects Cox model | ESA versus control HR (95% CI) |
| Hb increase | 1.18 (95% CI 0.70‐1.98) |
| Hb no change | 1.17 (95% CI 1.04‐1.32) |
| Hb decrease | 1.14 (95% CI 0.91‐1.43) |
| Unclear/not reported | 0.62 (95% CI 0.16‐2.43) |
| Overall | 1.16 (95% CI 1.05‐1.29) |
| LR test | 0.8154 |
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