Table 1. Patient characteristics.
| N=5,853 (%) | |
|---|---|
| Sex | |
| Male | 4,068 (69.5) |
| Female | 1,785 (30.5) |
| Age (years) | 58.9±10.7 |
| Histology | |
| Squamous carcinoma | 1,825 (31.2) |
| Adenocarcinoma | 3,101 (53.0) |
| Adenosquamous carcinoma | 303 (5.2) |
| Large cell carcinoma | 110 (1.9) |
| Bronchioalveolar carcinoma | 288 (4.9) |
| Others | 226 (3.9) |
| Operation type | |
| VATS | 2,792 (47.7) |
| Open surgery | 3,061 (52.3) |
| Operation type | |
| Lobectomy | 5,146 (87.9) |
| Pneumonectomy | 404 (6.9) |
| Wedge resection | 103 (1.8) |
| Sleeve resection | 197 (3.4) |
| Unspecific | 3 (0.1) |
| TNM stage | |
| Stage IA | 1,076 (18.4) |
| Stage IB | 1,604 (27.4) |
| Stage IIA | 983 (16.8) |
| Stage IIB | 477 (8.1) |
| Stage IIIA | 1,633 (27.9) |
| Stage IIIB | 80 (1.4) |