Table 1.
Characteristic of studied group
| Gender | |
| Male [n (%)] | 100 (69) |
| Female [n (%)] | 45 (31) |
| Age | |
| Median age ± SD (years) | 60 ± 8.8 |
| ≥60 years [n (%)] | 72 (49.7) |
| <60 years [n (%)] | 73 (50.3) |
| Histopathology | |
| Adenocarcinoma [n (%)] | 80 (55.2) |
| Squamous-cell carcinoma [n (%)] | 29 (20) |
| Large-cell carcinoma [n (%)] | 22 (15.1) |
| NSCLC–NOS [n (%)] | 14 (9.7) |
| Smoking status | |
| Current smokers [n (%)] | 73 (50.4) |
| Former smokers [n (%)] | 21 (14.5) |
| Non-smokers [n (%)] | 36 (24.8) |
| Lack of data [n (%)] | 15 (10.3) |
| Performance status (PS) | |
| 0 [n (%)] | 22 (15.2) |
| 1 [n (%)] | 76 (52.4) |
| 2 [n (%)] | 31 (21.4) |
| 3 [n (%)] | 16 (11) |