Variable | All patients | Patients with single sites of metastasis | Patients with ≥2 sites of metastasis | |||
---|---|---|---|---|---|---|
HR | Pvalue | HR | Pvalue | HR | Pvalue | |
Sex(female vs. male) | 0.742 | 0.117 | 0.605 | 0.079 | 0.786 | 0.201 |
Age(<60y vs. ≥60y) | 0.841 | 0.288 | 0.915 | 0.740 | 0.856 | 0.340 |
Pathological type (squamous vs. non-squamous ) | 0.991 | 0.957 | 0.919 | 0.767 | 0.973 | 0.872 |
T stage(T3-4 vs. T1-2) | 1.109 | 0.537 | 1.178 | 0.667 | 1.188 | 0.296 |
N stage(N2-3 vs. N0-1) | 1.286 | 0.232 | 1.213 | 0.597 | 1.305 | 0.208 |
Thoracic radiation dose | 0.615 | 0.007 | 0.576 | 0.045 | 0.619 | 0.008 |
(≥63Gy vs. <63Gy) | ||||||
Radiotherapy to metastases(yes vs. no) | 0.729 | 0.063 | 0.340 | 0.001 | 0.674 | 0.017 |
Chemotherapy cycles | 0.693 | 0.038 | 0.625 | 0.079 | 0.691 | 0.039 |
(≥4 cycles vs. < 4 cycles) | ||||||
Metastasis status | 1.513 | 0.014 | - | - | - | - |
(multi- vs. single) |