Variable | Univariate analysis | Multivariate analysis | ||
---|---|---|---|---|
HR (95% CI) | P | HR (95% CI) | P | |
Sex | ||||
Male VS Female | 0.875 (0.559 to 1.371) | 0.563 | ||
Age | ||||
≥ 60 VS < 60 | 1.086 (0.678 to 1.739) | 0.733 | ||
Tobacco smoking | ||||
yes VS no | 0.651 (0.358 to 1.186) | 0.104 | 0.785 (0.494 to 1.247) | 0.305 |
EGFR mutation, n (%) | ||||
19 VS 21 | 0.695 (0.434 to 1.113) | 0.130 | 0.721 (0.421 to 1.233) | 0.232 |
Number of radiotherapy sites | ||||
1 VS 2–6 | 0.617 (0.377 to 1.010) | 0.086 | 0.743 (0.413 to 1.335) | 0.321 |
The Site of radiotherapy | ||||
Brain yes VS no | 0.778 (0.494 to 1.225) | 0.279 | ||
Bone yes VS no | 0.751 (0.479 to 1.175) | 0.199 | ||
Dose, Gy | 0.011 | |||
< 50 | 0.457 (0.253 to 0.826) | 0.009 | ||
≥ 50, < 60 | 1.247 (0.788 to 1.974) | 0.528 | ||
≥ 60 | 0.628 (0.399 to 0.987) | 0.011 | 0.606 (0.382 to 0.961) | 0.033 |
Radiotherapy targeting synchronization | ||||
yes VS no | 0.743 (0.439 to 1.259) | 0.308 | 0.758 (0.423 to 1.357) | 0.351 |