Kaplan–Meier univariable survival analysis
| Variable | Categories | n (events) | 2 years survival (95% CI) | 5 years survival (95% CI) | p Value |
|---|---|---|---|---|---|
| T | T1 | 35 (2) | 0.935 (0.847 to 1.023) | 0.935 (0.847 to 1.023) | 0.005 |
| T2 | 81 (18) | 0.843 (0.757 to 0.929) | 0.793 (0.695 to 0.891) | ||
| T3 | 6 (1) | 1 | 0.667 (0.134 to 1.200) | ||
| T4 | 5 (2) | 0.8 (0.449 to 1.151) | 0.400 (−0.182 to 0.982) | ||
| N | N0 | 84 (11) | 0.921 (0.859 to 0.983) | 0.887 (0.813 to 0.961) | 0.049 |
| N1 | 18 (4) | 0.681 (0.420 to 0.942) | 0.681 (0.420 to 0.942) | ||
| N2 | 24 (8) | 0.756 (0.566 to 0.946) | 0.640 (0.422 to 0.858) | ||
| M (preoperative) | M0 | 121 (20) | 0.872 (0.939 to 0.805) | 0.823 (0.901 to 0.745) | 0.040 |
| M1 | 6 (3) | 0.667 (0.291 to 1.043) | 0.667 (0.291 to 1.043) | ||
| Distant recurrence | No | 100 (7) | 0.952 (0.905 to 0.999) | 0.923 (0.864 to 0.982) | 0.000 |
| Yes | 27 (16) | 0.563 (0.367 to 0.759) | 0.465 (0.669 to 0.261) | ||
| Pneumonectomy | No | 105 (17) | 0.736 (0.534 to 0.938) | 0.669 (0.448 to 0.890) | 0.157 |
| Yes | 22 (6) | 0.889 (0.824 to 0.954) | 0.848 (0.772 to 0.924) | ||
| Chemotherapy | No | 114 (18) | 0.869 (0.802 to 0.936) | 0.844 (0.771 to 0.917) | 0.327 |
| Yes | 13 (5) | 0.788 (0.525 to 1.051) | 0.563 (0.240 to 0.886) |