| Two‐stage meta‐analysis based on random‐effects Cox model | ESA versus control HR (95% CI) |
| Hb increase | 1.12 (95% CI 0.98‐1.29) |
| Hb no change | 1.23 (95% CI 1.05‐1.44) |
| Hb decrease | 1.04 (95% CI 0.48‐2.24) |
| Unclear/not reported | 0.62 (95% CI 0.16‐2.43) |
| Overall | 1.16 (95% CI 1.05‐1.29) |
| LR test | 0.7120 |
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