Table 2. Univariate and multivariate analysis of prognostic factors and patient characteristics.
| Characteristic | Univariate analysis | Multivariate analysis | ||||
|---|---|---|---|---|---|---|
| OS | PFS | OS | PFS | |||
| P value | P value | HR(95%CI) | P value | HR(95%CI) | P value | |
| Age<60 | 0.224 | 0.320 | ||||
| Male gender | 0.656 | 0.701 | ||||
| B symptom | 0.986 | 0.707 | ||||
| Nasal cavity origin | 0.672 | 0.551 | ||||
| Local invasion | 0.089 | 0.069 | ||||
| ECOG score >2 | 0.175 | 0.264 | ||||
| Ann Arbor stage II | 0.045 | 0.031 | 2.254(0.880-5.773) | 0.090 | 1.954(0.934-4.085) | 0.075 |
| Elevated LDH level | 0.575 | 0.787 | ||||
| RT | 0.001 | 0.001 | 0.174(0.069-0.437) | 0.001 | 0.179(0.085-0.376) | 0.001 |
Abbreviations: OS, overall survival; PFS, progression-free survival; LDH, lactate dehydrogenase; CT, chemotherapy; RT, radiotherapy.