Table 2.
Multivariate survival analysis of 191 patients.
| Factor | Cases (%) | Median OS (month) | HR (95% CI) | P value |
|---|---|---|---|---|
| KPS | ||||
| <80 | 50 (26.2) | 11.6 | 0.024 | |
| ≥80 | 141 (73.8) | 31.2 | 1.77 (1.08–2.91) | |
|
| ||||
| Number of metastases | ||||
| 1-3 | 61 (31.9) | 46.9 | — | — |
| 4-5 | 33 (17.3) | 35.9 | 1.36 (0.76–2.45) | 0.297 |
| >5 | 97 (50.8) | 13.0 | 3.99 (2.36–6.78) | <0.001 |
|
| ||||
| Nasopharyngeal radiotherapy | ||||
| No | 42 (22.0) | 10.3 | <0.001 | |
| Yes | 149 (78.0) | 27.9 | 0.02 (0.01–0.16) | |
|
| ||||
| Dose | ||||
| <70 Gy | 25 (16.8) | 14.4 | 0.001 | |
| ≥70 Gy | 124 (83.2) | 31.9 | 0.42 (0.25–0.71) | |
|
| ||||
| Cycles of first-line chemotherapy | ||||
| <6 | 124 (64.9) | 15.6 | 0.013 | |
| ≥6 | 67 (35.1) | 31.8 | 0.57 (0.36–0.89) | |