Table 4.
Prognostic factors for the disease-specific survival in nasopharyngeal carcinoma survivors
| Variable | Univariate Log-rank test | Cox model |
|
|---|---|---|---|
| HR (95% CI) | p-value | ||
| Age (≥ 60 yr vs. < 60 yr) | 0.147 | - | - |
| Sex (male vs. female) | 0.638 | - | - |
| Drinker (yes vs. no) | 0.241 | - | - |
| Smoker (yes vs. no) | 0.013 | 1.951 (0.847-3.003) | 0.287 |
| Tumor site (tongue vs. others) | 0.378 | - | - |
| Tumor stage (T1+T2 vs. T3+T4) | 0.016 | 2.631 (0.411-6.387) | 0.612 |
| Node stage (N0 vs. N+) | 0.188 | - | - |
| Disease stage (Ⅰ+Ⅱ vs. Ⅲ+Ⅳ) | 0.007 | 4.021 (1.637-13.554) | < 0.001 |
| Differentiation (well vs. moderate+poor) | 0.087 | - | - |
| Perineural invasion (yes vs. no) | 0.016 | 2.002 (1.174-3.982) | 0.011 |
| Lymphovascular invasion (yes vs. no) | 0.325 | - | - |
| Treatment (surgery alone vs. others) | 0.023 | 1.988 (1.164-3.863) | 0.013 |
HR, hazard ratio; CI, confidence interval.