Table 3.
Results of the multivariate Cox regression for overall survival
| Characteristic | HR | 95% CI | p-value |
|---|---|---|---|
| Age groups | |||
| Young | – | – | – |
| Elderly | 1.00 | 0.58, 1.71 | > 0.9 |
| Karnofsky | |||
| 80+ | – | – | – |
| ≤ 70 | 2.36 | 1.40, 3.95 | 0.001 |
| Alcohol | |||
| Never | – | – | – |
| Terminated | 1.16 | 0.68, 1.98 | 0.6 |
| Current | 4.02 | 1.81, 8.96 | < 0.001 |
| Resection | |||
| R0 | – | – | – |
| Close (< 5 mm) | 1.07 | 0.55, 2.08 | 0.8 |
| R1 | 1.93 | 0.93, 4.01 | 0.077 |
| ECE | |||
| Absent | – | – | – |
| Present | 2.07 | 1.14, 3.75 | 0.017 |
| Chemotherapy | |||
| No ind. | – | – | – |
| Received | 1.61 | 0.80, 3.21 | 0.2 |
| Ind., not received | 4.19 | 1.90, 9.26 | < 0.001 |
| RT discontinuation | |||
| Full course | – | – | – |
| Discontinued | 3.56 | 1.40, 9.02 | 0.007 |
HR hazard ratio, CI confidence interval, ECE extracapsular extension of lymph node metastases, RT radiotherapy