Table 1.
Clinical characteristics
| Variables | Lobectomy (n = 56) | Sublobar resection (n = 57) | P value |
|---|---|---|---|
| Age, years | 62.32 ± 7.72 | 60.26 ± 9.54 | 0.210 |
| Male, n (%) | 24 (42.9) | 15 (26.3) | 0.064 |
| Smoking history, n (%) | 10 (17.9) | 6 (10.5) | 0.264 |
| Resected lobe | |||
| Right upper lobe | 16 | 11 | |
| Right middle lobe | 5 | 3 | |
| Right lower lobe | 6 | 8 | |
| Left upper lobe | 18 | 15 | |
| Left lower lobe | 9 | 6 | |
| Others | 2 | 14 | |
| Interval between two operations (month) | 10.51 (4.17–24.73) | 3.57 (1.62–8.92) | 0.004 |
| Preoperative | |||
| preFVC (L) | 2.92 ± 0.59 | 3.04 ± 0.77 | 0.367 |
| preFEV1 (L) | 2.41 ± 0.56 | 2.48 ± 0.67 | 0.498 |
| Postoperative | |||
| postFVC (L) | 2.58 ± 0.58 | 2.76 ± 0.71 | 0.141 |
| postFEV1 (L) | 2.05 ± 0.51 | 2.24 ± 0.61 | 0.065 |
| FVC loss (%) | 11.39 ± 13.52 | 8.16 ± 13.33 | 0.203 |
| FEV1 loss (%) | 14.37 ± 13.66 | 8.65 ± 12.58 | 0.022 |
FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity; postFVC, postoperative forced vital capacity; postFEV1, postoperative forced expiratory volume in 1 s; preFVC, preoperative forced vital capacity; preFEV1, preoperative forced expiratory volume in 1 s