Variable | Univariate | Multivariate | ||||||
---|---|---|---|---|---|---|---|---|
HR | 95% CI | p value | HR | 95% CI | p value | |||
Clinical factor | ||||||||
 Sex, female | 0.647 | 0.319 | 1.314 | 0.228 |  |  |  |  |
 Age (years), older | 1.086 | 1.045 | 1.127 |  < 0.001 | 1.110 | 1.040 | 1.185 | 0.002 |
 Smoking, present | 1.977 | 0.974 | 4.012 | 0.059 | 12.893 | 3.226 | 51.532 |  < 0.001 |
 Surgical procedure, lobectomy | – | 0.000 | Inf | 0.997 |  |  |  |  |
 Adjuvant treatment, present | 1.410 | 0.649 | 3.064 | 0.385 |  |  |  |  |
 Recurrence subtype, poly* | 6.872 | 1.996 | 23.660 | 0.002 |  |  |  |  |
CT factor | Â | Â | Â | |||||
 CT morphology, consolidative type | 3.181 | 1.571 | 6.442 | 0.001 | 6.779 | 1.675 | 27.444 | 0.007 |
 Solidity, part-solid type | 1.196 | 0.591 | 2.420 | 0.618 |  |  |  |  |
 Well-defined heterogenous GGO | 2.341 | 1.006 | 5.444 | 0.048 | 1.793 | 0.473 | 6.797 | 0.391 |
 Lobulated margin | 1.068 | 0.523 | 2.180 | 0.857 |  |  |  |  |
 Spiculated margin | 0.716 | 0.320 | 1.602 | 0.417 |  |  |  |  |
 CT air-bronchogram | 1.010 | 0.495 | 2.062 | 0.978 |  |  |  |  |
 CT angiogram sign, present | 1.049 | 0.403 | 2.732 | 0.922 |  |  |  |  |
Pathologic factor | Â | Â | Â | |||||
 Surgical bronchial margin, ≤ 1 cm | 3.147 | 1.185 | 8.358 | 0.021 | 2.699 | 0.431 | 16.901 | 0.289 |
 T stage, higher, T2/3 vs. T1 | 6.242 | 2.183 | 17.850 | 0.001 | 13.005 | 2.057 | 82.213 | 0.006 |
 N stage, higher, N2 vs. N0†| 7.097 | 2.959 | 17.020 |  < 0.001 | 7.653 | 1.927 | 30.386 | 0.004 |
 Tumor differentiation, poor, poor vs. well‡ | 5.414 | 2.006 | 14.612 | 0.001 | 5.071 | 0.697 | 36.924 | 0.109 |
 Aerogenous spread, present | 1.018 | 0.490 | 2.116 | 0.962 |  |  |  |  |
 Mucin, present | 0.458 | 0.218 | 0.963 | 0.039 | 1.576 | 0.460 | 5.404 | 0.469 |
 STAS, present | 2.501 | 0.864 | 7.239 | 0.091 | 7.463 | 1.702 | 32.729 | 0.008 |
 EGFR mutation, yes | 0.944 | 0.326 | 2.730 | 0.915 |  |  |  |  |