Clinicopathological features of 113 patients with lung cancer
| Characteristic | N=113 |
| Age | 71 (64, 76) |
| Sex | |
| Female | 41 (36%) |
| Male | 72 (64%) |
| Smoking index (pack-year) | 30 (3, 48) |
| Histology | |
| Adenocarcinoma | 76 (67%) |
| Squamous cell carcinoma | 23 (20%) |
| Others | 14 (13%) |
| Histological grade | |
| 1 | 7 (6.8%) |
| 2 | 55 (53%) |
| 3 | 29 (28%) |
| 4 | 12 (12%) |
| Unknown | 10 |
| Invasive tumor size (mm) | 26 (18, 34) |
| T factor | |
| 1 | 52 (46%) |
| 2 | 51 (45%) |
| 3 | 6 (5.3%) |
| 4 | 4 (3.5%) |
| N factor | |
| 0 | 81 (72%) |
| 1 | 14 (12%) |
| 2 | 14 (12%) |
| X | 3 (2.7%) |
| M factor | |
| 0 | 110 (97.3%) |
| 1 | 3 (2.7%) |
| Pathological stage | |
| I | 71 (63%) |
| II | 23 (20%) |
| III | 16 (14%) |
| IV | 3 (2.7%) |
| Median (IQR); n (%) |