Table 2.
Univariate and multivariate survival analyses (proportional hazards method) for patients with primary HNSCC.
| Variable | Univariate survival analysis | Multivariate survival analysis | ||||
|---|---|---|---|---|---|---|
| Hazard ratio | 95% CI | P-value | Hazard ratio | 95% CI | P-value | |
| Gender (male, female) | 1.132 | 0.558-2.299 | 0.731 | 1.070 | 0.334-3.423 | 0.909 |
| Smoking (no, yes) | 1.095 | 0.504-2.378 | 0.819 | 1.389 | 0.469-4.108 | 0.553 |
| Alcohol use (no, yes) | 0.802 | 0.389-1.654 | 0.550 | 0.648 | 0.205-2.047 | 0.460 |
| Age (≤60, >60) | 1.192 | 0.561-2.535 | 0.648 | 1.588 | 0.730-3.452 | 0.243 |
| Tumor size (T1-T2, T3-T4) | 0.675 | 0.236-1.931 | 0.463 | 0.575 | 0.199-1.660 | 0.306 |
| Pathological grade (I, II-III) | 1.307 | 0.871-1.961 | 0.196 | 1.206 | 0.779-1.867 | 0.838 |
| Cervical nodal metastasis (N0, N+) | 1.402 | 0.628-3.133 | 0.410 | 1.816 | 0.483-6.832 | 0.377 |
| Clinical stage (I-II, III-IV) | 1.302 | 0.548-4.133 | 0.549 | 1.273 | 0.788-2.198 | 0.641 |
| MMP1 expression (low, high) | 3.306 | 1.163-7.928 | 0.023 ∗ | 3.410 | 1.281-9.082 | 0.014 ∗ |
∗ indicate statistical significance with P-values less than 0.05.