Table 4.
Results of Cox proportional hazard model analysis
| Independent valuable | Pvalue | Hazard ratio | 95% confidence interval |
|---|---|---|---|
| Tumor-chest wall distance (mm) |
<0.0001 |
0.858 |
0.801–0.920 |
| Age |
0.713 |
0.990 |
0.937–1.045 |
| Gender* |
0.002 |
3.172 |
1.503–6.695 |
| Maximum diameter of the tumor |
0.754 |
0.994 |
0.955–1.034 |
| Radiotherapeutic method 48 Gy or not |
0.829 |
0.911 |
0.391–2.122 |
| Radiotherapeutic method 60 Gy or not | 0.087 | 0.454 | 0.184–1.121 |
*The hazard ratio for gender is represented as the hazard of women divided by that of men.