Table 4.
Univariate Cox analysis for risk factors.
| Univariate Cox regression analysis | ||
|---|---|---|
| Characteristic | HR (95% CI) | p-value |
| Gender | ||
| Male | Reference | |
| Female | 0.686 (0.263–1.786) | 0.440 |
| Age | ||
| For each 1-year increase | 1.009 (0.979–1.041) | 0.554 |
| Primary location | ||
| Central | Reference | |
| Extremities | 0.567 (0.222–1.446) | 0.235 |
| Location of metastases | ||
| None | Reference | |
| Lung | 2.856 (0.572–14.250) | 0.201 |
| Mixed | 6.665 (1.779–24.970) | 0.005 |
| Other | 11.431 (2.465–53.000) | 0.002 |
| Type of resection | ||
| R0 | Reference | |
| R1-R2 | 2.021 (0.540–7.570) | 0.296 |
| Palliative chemotherapy | ||
| No | Reference | |
| Yes | 3.856 (1.349–11.020) | 0.012 |
HR, hazard ratio; CI, confidence interval. p value significance are indicated in bold.