Table 1.
Perioperative characteristics of the second intervention (N=115)
| Variables | First resection, n (%) | Second resection, n (%) |
|---|---|---|
| Sex (%) | ||
| Male | 55 (47.8) | |
| Female | 60 (52.2) | |
| Age (years) | ||
| Median (range) | 60.0 (36–78) | |
| Smoking history | ||
| Never | 80 (69.6) | |
| Ever | 35 (30.4) | |
| FEV1 (%) | ||
| ≤60 | 17 (14.8) | |
| >60 | 98 (85.2) | |
| Tumor-free interval (years) | ||
| <2 | 63 (54.8) | |
| ≥2 | 52 (45.2) | |
| Surgical approach | ||
| Thoracotomy | 28 (24.3) | |
| Video-assisted thoracoscopic surgery | 87 (75.7) | |
| Adjuvant chemotherapy after first/second resection | ||
| Yes | 32 (27.8) | 40 (34.8) |
| No | 83 (72.2) | 75 (65.2) |
| ECOG PS before second resection | ||
| 0–1 | 80 (69.6) | |
| 2 | 35 (30.4) | |
| Location | ||
| Ipsilateral | 39 (33.9) | |
| Contralateral | 76 (66.1) | |
| Computed tomography morphology | ||
| GGO-p | 46 (40) | 73 (63.5) |
| Solid-p | 69 (60) | 42 (36.5) |
| Type of resection | ||
| Sublobar resection | 21 (18.3) | 58 (50.4) |
| Wedge | 18 (15.7) | 37 (32.2) |
| Segmentectomy | 3 (2.6) | 21 (18.3) |
| Lobar resection | 94 (81.7) | 57 (49.6) |
| Lobectomy | 88 (76.5) | 56 (48.7) |
| Extended lobectomy | 3 (2.6) | 1 (0.9) |
Abbreviations: ECOG, Eastern Cooperative Oncology Group; FEV1, forced expiratory volume in 1 s; GGO-p, ground glass opacity predominant; PS, performance status; Solid-p, solid predominant.