Table 3.
Cox proportional regression analyses of variables affecting the distant metastasis-free survival (DMFS) in NPC patients.
| Variables | Subsets | Distant metastasis-free survival | |||
|---|---|---|---|---|---|
| Univariate analysis | Multivariate analysis | ||||
| HR (95% CI) | p value | HR (95% CI) | p value | ||
| HLA-F expression | High vs. low and moderate | 3.65 (1.53–8.73) | 0.004 | 3.65 (1.53–8.73) | 0.004 |
| Gender | Male vs. female | 0.90 (0.23–3.50) | 0.882 | ||
| Age (years) | <54 vs. ≥54 | 3.96 (0.84–18.66) | 0.082 | ||
| Tumour differentiation | Undifferentiated vs. differentiated | 0.49 (0.10–2.31) | 0.367 | ||
| Tumour stage | T1 + T2 vs. T3 + T4 | 1.49 (0.42–5.35) | 0.541 | ||
| Lymph node status | N0 vs. N1–3 | 1.58 (0.33–7.43) | 0.565 | ||
| TNM stage | I + II vs. III + IV | 4.81 (0.61–38.03) | 0.136 | ||
Abbreviation: HR: hazard ratio; CI: confidence interval; HLA-F: human leukocyte antigen F; TNM: tumour node metastasis.