Table 3 Baseline characteristics and results of univariable analyses
From: Postoperative air leak grading is useful to predict prolonged air leak after pulmonary lobectomy
Variables | No. of cases (%) | P valuea | ||
|---|---|---|---|---|
All | PAL (−) | PAL (+) | ||
(N = 720) | (N = 585) | (N = 135) | ||
Ageb (years) | 64 (7–85) | 64 (7–85) | 66 (14–82) | <0.001c |
Male | 464 (64.4%) | 354 (60.5%) | 110 (81.5%) | <0.001 |
Preoperative medication | ||||
Aspirin or NSAIDs | 98 (13.6%) | 80 (13.7%) | 18 (13.3%) | 0.92 |
Steroid (including inhalator) | 15 (2.1%) | 9 (1.5%) | 6 (4.4%) | 0.05d |
Neoadjuvant chemotherapy | 50 (6.9%) | 39 (6.7%) | 11 (8.1%) | 0.54 |
Preoperative spirometry | ||||
FEV1/FVC < 70% | 259 (36.0%) | 201 (34.4%) | 58 (43.0%) | 0.04 |
FVC% < 80 | 76 (10.6%) | 62 (10.6%) | 14 (10.4%) | 0.90 |
FEV1% < 80 | 108 (15.0%) | 81 (13.8%) | 27 (20.0%) | 0.04 |
DLCO% < 80 | 103 (14.3%) | 81 (13.8%) | 22 (16.3%) | 0.34 |
Underlying DM | 101 (14.0%) | 83 (14.2%) | 18 (13.3%) | 0.80 |
Preoperative Hb < 10 g/dL | 29 (4.0%) | 23 (3.9%) | 6 (4.4%) | 0.41d |
Preoperative albumin < 3.0 g/dL | 12 (1.7%) | 10 (1.7%) | 2 (1.5%) | 0.32d |
BMI < 25.5 kg/m2 | 523 (72.6%) | 416 (71.1%) | 107 (79.3%) | 0.07 |
Open thoracotomy | 375 (52.1%) | 299 (51.1%) | 76 (56.3%) | 0.28 |
Right side operation | 456 (63.3%) | 352 (60.2%) | 104 (77.0%) | <0.001 |
Upper lobectomy | 372 (51.7%) | 293 (50.1%) | 79 (58.5%) | 0.08 |
Combined chest wall resection | 21 (2.9%) | 17 (2.9%) | 4 (3.0%) | 1.00d |
Pleural adhesion (+) | 338 (46.9%) | 256 (43.8%) | 82 (60.7%) | <0.001 |
Incomplete fissure (+) | 362 (50.3%) | 284 (48.5%) | 78 (57.8%) | 0.05 |