| (b) Preoperative pulmonary function test | ||||||
|---|---|---|---|---|---|---|
| Characteristics | P-group | L-group | p-value | |||
| (n = 20) | (n = 24) | |||||
| VC (L) | Average | 2.73 ± 0.15 | 2.90 ± 0.11 | p = 0.3535 | ||
| Range | 1.82–3.99 | 1.59–3.73 | ||||
| %VC (%) | Average | 106.6 ± 3.26 | 103.2 ± 2.64 | p = 0.4177 | ||
| Range | 87.9–130.2 | 78.8–129.2 | ||||
| FEV1.0 (L) | Average | 1.83 ± 0.11 | 1.98 ± 0.08 | p = 0.2549 | ||
| Range | 0.86–2.87 | 1.07–2.67 | ||||
| FEV1.0% (%) | Average | 67.5 ± 2.4 | 69.6 ± 1.6 | p = 0.4751 | ||
| Range | 47.1–86.5 | 53.9–86.2 | ||||
| %FEV1.0 (%) | Average | 113.7 ± 6.5 | 106.7 ± 4.5 | p = 0.3693 | ||
| Range | 70.1–161.3 | 68.3–146.9 | ||||
| %TLC (%) | Average | 102.4 ± 3.8 | 97.3 ± 3.3 | p = 0.3272 | ||
| Range | 84.8–120.0 | 72.6–121.3 | ||||
| %DLCO (%) | Average | 87.9 ± 8.4 | 85.9 ± 7.4 | p = 0.8642 | ||
| Range | 50.6–131.2 | 45.9–141.4 | ||||
| pO2 (Torr) | Average | 83.5 ± 2.3 | 82.5 ± 2.0 | p = 0.7539 | ||
| Range | 67.0–103.0 | 66.0–103.0 | ||||
| pCO2 (Torr) | Average | 41.7 ± 0.7 | 40.2 ± 0.9 | p = 0.2140 | ||
| Range | 37.0–47.0 | 31.7–47.0 | ||||
| A–aDO2 (Torr) | Average | 14.1 ± 2.1 | 16.9 ± 2.0 | p = 0.3419 | ||
| Range | 2.0–29.6 | 0.8–32.7 | ||||
| KL-6 (U/ml) | Average | 488.2 ± 81.7 | 435.6 ± 76.7 | p = 0.6457 | ||
| Range | 248–1340 | 35–1370 | ||||
| SP-D (ng/ml) | Average | 64.3 ± 11.3 | 124.6 ± 23.9 | p = 0.0528 | ||
| Range | 17.2–133.0 | 27.2–366.0 | ||||
P group: partial resection; L group: lobectomy; VC: vital capacity; FEV1.0: forced expiratory volume in 1 s; FEV1.0%: a forced expiratory volume for 1 s expressed as a percentage of the forced vital capacity; TLC: total lung capacity; DLCO: diffusing capacity for carbon monoxide; A–aDO2: alveolar–arterial oxygen gradient