Table 1.
The patient characteristics
| Variable | No. of patients |
|---|---|
| Gender | |
| Female | 51 (89.5%) |
| Male | 6 (10.5%) |
| Age | |
| Median age (range; years) | 63.6 (48–86) |
| Smoking status | |
| Former (pack-year index < 50) | 32 (56.1%) |
| Current | 25 (43.9%) |
| Surgical procedure | |
| Pneumonectomy | 6 (10.5%) |
| Bilobectomy | 3 (5.3%) |
| Lobectomy | 42 (73.7%) |
| Segmentectomy | 3 (5.3%) |
| Partial resection | 3 (5.3%) |
| Clinical stage | |
| IA | 25 (43.9%) |
| IB | 13 (22.8%) |
| IIA | 5 (8.8%) |
| IIB | 7 (12.3%) |
| IIIA | 7 (12.3%) |
| Pathological stage | |
| IA | 20 (35.1%) |
| IB | 9 (15.8%) |
| IIA | 9 (15.8%) |
| IIB | 7 (12.3%) |
| IIIA | 10 (17.5%) |
| IIIB | 2 (3.5%) |