Table 1. Patients demographics.
| Demographic VARIABLE | TS-S (n=191) |
|---|---|
| Age (years), mean [range] | 66 [37–87] |
| Male/female | 81/110 |
| Clinical stage | |
| IA/IB | 184/7 |
| Tumor size (cm), mean [range] | 15.3 [6–46] |
| Pulmonary function | |
| FVC (L), mean (range) | 3.24 (1.44–5.26) |
| FEV1 (L), mean (range) | 2.41 (1.26–4.16) |
| COPD (FEV1% <70), n (%) | 51 (27%) |
| Preoperative comorbidity, n (%) | 110 (58%) |
| Past history of malignant disease n (%) | 49 (26%) |
| Intentional/compromised indication, n (%) | 145 (76%)/46 (24%) |
| Preoperative diagnosis of lung cancer | 11 (5.8%) |
| Histologic type | |
| Ad | 183 (MIA 29, AIS 22) |
| Non-ad | 8 (Sq 4, Adsq 1, LCNEC 1, Others 2) |
| Pathologic stage | |
| IA/IB/IIA/IIB/IIIA | 176/9/1/4/1 |
Ad, adenocarcinoma; MIA, minimally invasive adenocarcinoma; AIS, adenocarcinoma in situ; Sq, squamous cell carcinoma; Adsq, adenosquamous cell carcinoma; LCNEC, large cell neuroendocrine carcinoma; FVC, forced vital capacity; FEV1, forced expiratory volume in second; COPD, chronic obstructive pulmonary disease; FEV1%, FEV1/FVC.