Table 3. Univariate and multivariate analyses on clinicopathologic features of NPC patients.
| Factors | Univariate analysis | Multivariate analysis | |||
|---|---|---|---|---|---|
| HR (95% CI) | P | HR (95% CI) | P | ||
| Age: <45 vs. ≥45 | 0.570 (0.240–1.353) | 0.203 | – | – | |
| Gender: female vs. male | 0.976 (0.361–2.641) | 0.962 | – | – | |
| EA/IgA: <1:20 vs. ≥1:20 | 0.928 (0.407–2.119) | 0.86 | – | – | |
| VCA/IgA: <1:160 vs. ≥1:160 | 0.899 (0.304–2.659) | 0.0847 | – | – | |
| Clinical staging: I–III vs. VI | 0.307 (0.129–0.727) | 0.007** | – | – | |
| Distant metastasis: no vs. yes | 0.126 (0.051–0.309) | <0.001*** | 0.146 (0.059–0.364) | <0.001*** | |
| RRAS expression: low vs. high | 3.045 (1.282–7.230) | 0.012* | 2.244 (0.925–5.441) | 0.074# | |
#, P<0.1; *, P<0.05; **, P<0.01; ***, P<0.001. NPC, nasopharyngeal carcinoma.