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| Variables | HR | 95% CI | P value |
|---|---|---|---|
| Stage IV | 1.78 | 0.35–9.17 | 0.491 |
| B-symptoms | 3.90 | 1.02–14.89 | 0.046 |
| Spleen | 2.65 | 0.74–9.46 | 0.135 |
| Extranodal | 4.65 | 1.17–18.46 | 0.029 |
| LDH, > 750 IU/L | 3.11 | 0.55–17.60 | 0.200 |
HR = hazard ratio, CI = confidence interval, LDH = lactate dehydrogenase.
