Table 3.
Multivariate analysis of association between Stage-modified IPI score and the time to CNS relapse.
| Multivariate analysis | ||||
|---|---|---|---|---|
| Adjusted variables | HR | 95% CI | P value | Bootstrap 95%CI |
| Stage-modified IPI score | 12.945 | 1.606–104.375 | 0.016 | 1.745–40846613 |
| Radiation therapy | 7.258 | 1.534–34.344 | 0.012 | / |
| Rituximab exposure | 1.269 | 0.268–6.003 | 0.764 | / |
| Intrathecal injection | 1.511 | 0.401–5.688 | 0.542 | / |
| Breast Surgery | 0.88 | 0.234–3.307 | 0.85 | / |
| HBsAg status | 1.494 | 0.640–3.487 | 0.354 | / |
Note: CI, confidence intervals; CNS, central nervous system; IPI, international prognostic index; HBsAg, hepatitis B surface antigen; HR, hazard ratio.