Table 1. Overall survival stratified by selected factors and covariates.
| Factor | Cut off | N (total) | N (events) | 5-years survival | Log Rank Test |
|---|---|---|---|---|---|
| age | < 65 | 40 | 21 | 0.491 | 0.601 |
| > 65 | 34 | 18 | 0.646 | - | |
| gender | male | 53 | 30 | 0.520 | 0.242 |
| female | 21 | 9 | 0.667 | - | |
| histology | adenocarcinoma | 22 | 13 | 0.542 | 0.136 |
| not specified | 2 | 2 | 0.000 | - | |
| squamous | 46 | 21 | 0.626 | - | |
| giant cell | 4 | 3 | 0.250 | - | |
| stage | I B | 19 | 7 | 0.730 | 0.042 |
| II A | 8 | 3 | 0.750 | - | |
| II B | 22 | 11 | 0.546 | - | |
| III A | 25 | 18 | 0.396 | - | |
| smoking | ex-smoker | 23 | 16 | 0.522 | 0.181 |
| smoker | 45 | 21 | 0.543 | - | |
| non-smoker | 6 | 2 | 0.833 | - | |
| type of surgery | bilobectomy | 8 | 6 | 0.375 | 0.275 |
| lobectomy | 50 | 25 | 0.617 | - | |
| pneumonectomy | 16 | 8 | 0.474 | - | |
| early treatment termination | yes | 10 | 5 | 0.480 | 0.916 |
| no | 64 | 34 | 0.574 | - | |
| % intensity NVB i.v. | < 100% | 29 | 12 | 0.458 | 0.789 |
| = 100% | 45 | 30 | 0.592 | - | |
| % intensity NVB p.o. | < 100% | 61 | 39 | 0.594 | 0.861 |
| = 100% | 13 | 8 | 0.446 | - | |
| % intensity CBDCA. | < 100% | 42 | 29 | 0.494 | 0.720 |
| = 100% | 32 | 14 | 0.595 | - |