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Characteristic of studied group
| Gender | |
| Male, n (%) | 99 (69.2) |
| Female, n (%) | 44 (30.8) |
| Age | |
| Median age ± SD (years) | 60 ± 8.8 |
| ≥60 years, n (%) | 71 (49.7) |
| <60 years, n (%) | 72 (50.3) |
| Pathomorphological diagnosis | |
| Adenocarcinoma, n (%) | 61 (42.7) |
| Squamous cell carcinoma, n (%) | 23 (16.1) |
| NSCLC-NOS, n (%) | 38 (26.6) |
| Large cell carcinoma, n (%) | 21 (14.6) |
| Smoking status | |
| Smokers, n (%) | 86 (60.1) |
| Non-smokers, n (%) | 32 (22.4) |
| Lack of data, n (%) | 25 (17.5) |
