Cox regression Analysis for OS
| Univariate analysis | Multivariate analysis | |||||
| Characteristic | HR | 95% CI | P | HR | 95% CI | P |
| BMB/BMI+ | 4.10 | 1.36–12.36 | 0.01 | 2.67 | 0.87–8.21 | 0.09 |
| PET/BMI+ | 2.81 | 1.16–6.78 | 0.02 | 2.17 | 0.88–5.33 | 0.09 |
| IPI > 2 | 4.59 | 1.75–12.03 | 0.002 | 4.15 | 1.57–10.95 | 0.004 |
| Age > 60 y | 2.08 | 0.83–5.29 | 0.1 | — | — | — |
| Stage III or IV | 2.53 | 0.74–8.69 | 0.1 | — | — | — |
| ECOG ≥ 2 | 6.80 | 2.72–17.12 | <0.001 | — | — | — |
| LDH+ | 3.52 | 1.03–12.03 | 0.04 | — | — | — |
| Extranodal site > 1 | 2.88 | 1.17–7.06 | 0.02 | — | — | — |