Table 3. Multivariate analysis.
P | HR | 95% of CI | ||
---|---|---|---|---|
Lower | Upper | |||
Performance status | < 0.001 | 0.451 | 0.310 | 0.656 |
Disease free interval | 0.856 | 0.968 | 0.683 | 1.373 |
EBV DNA | 0.001 | 1.941 | 1.330 | 2.832 |
Single organ or multiple organ site metastasis | < 0.001 | 2.498 | 1.710 | 3.649 |