| Gender | Male | 8 |
| Female | 18 | |
| Age | Mean ± SD | 68.9 ± 8.5 |
| range | 53 - 82 | |
| ECOG-PS | 0 | 25 |
| 1 | 1 | |
| Operative procedure | Lobectomy | 25 |
| Segmentectomy | 1 | |
| Histology | Adenocarcinoma | 20 |
| Squamous cell carcinoma | 5 | |
| Atypical carcinoid | 1 | |
| Pathological stage | IA | 14 |
| IB | 5 | |
| IIB | 2 | |
| IIIA | 3 | |
| IIIB | 1 | |
| IV | 1 | |
| Somatometry | Body weight (kg) | 55.5 ± 7.4 |
| Body height (cm) | 160.0 ± 6.0 | |
| Body surface area (m2) | 1.57 ± 0.12 | |
| Preoperative lung function | VC (L) | 3.32 ± 0.61 |
| %VC% (%) | 114.2 ± 17.0 | |
| FEV1 (L) | 2.30 ± 0.55 | |
| %FEV1 (%) | 69.7 ± 10.7 | |
| Postoperative lung function | VC (L) | 2.39 ± 0.52 |
| %VC (%) | 82.2 ± 13.9 | |
| FEV1 (L) | 1.79 ± 0.48 | |
| %FEV1 (%) | 74.7 ± 10.6 |