Variable | Subset | HR | 95% CI | P-value |
---|---|---|---|---|
Univariate analysis | Â | Â | Â | Â |
 age | >60 |  |  |  |
 | ≤60 | 0.845 | 0.425 to1.680 | 0.632 |
 sex | male |  |  |  |
 | female | 2.133 | 0.954 to4.769 | 0.065 |
 histological type | squamous |  |  |  |
 | nonsquamous | 2.191 | 1.088 to4.409 | 0.028 |
 induction regimen | gemcitabine |  |  |  |
 | paclitaxel | 0.466 | 0.227 to0.957 | 0.038 |
 T size before chemotherapy | >5cm |  |  |  |
 | ≤5cm | 0.645 | 0.289 to1.440 | 0.285 |
 cN2 | (+) |  |  |  |
 | (-) | 0.186 | 0.073 to0.474 | 0.0004 |
 clinical response | CR/PR |  |  |  |
 | SD/PD | 0.654 | 0.329 to1.301 | 0.226 |
 type of resection | lobectomy |  |  |  |
 | pneumonectomy | 1.403 | 0.576 to3.419 | 0.456 |
 T size after chemotherapy | >3cm |  |  |  |
 | ≤3cm | 0.561 | 0.245 to 1.287 | 0.173 |
 pN status | N2 |  |  |  |
 | N0/N1 | 1.249 | 0.833 to1.873 | 0.283 |
 pN status | N0 |  |  |  |
 | N1/N2 | 1.647 | 0.804 to3.373 | 0.172 |
Multivariate analysis | Â | Â | Â | Â |
 cN2 | (+) |  |  |  |
 | (-) | 0.179 | 0.060 to0.531 | 0.002 |
 clinical response | CR/PR |  |  |  |
 | SD/PD | 0.295 | 0.114 to0.766 | 0.012 |