Table 3.
Relationship between patient characteristics or operative factors and postoperative air leakage
| Air leakage | p value | ||
|---|---|---|---|
| Present | Absent | ||
| Gender | |||
| Male | 88 (15%) | 497 (85%) | < 0.01 |
| Female | 24 (7%) | 347 (94%) | |
| Age | |||
| < 75 y | 77 (11%) | 622 (89%) | 0.26 |
| ≥ 75 y | 35 (14%) | 222 (86%) | |
| Smoking history | |||
| Present | 87 (15%) | 508 (85%) | < 0.01 |
| Absent | 25 (7%) | 336 (94%) | |
| Coexistence of interstitial lung disease | |||
| Present | 0 (0%) | 22 (100%) | 0.08 |
| Absent | 112 (12%) | 822 (88%) | |
| Coexistence of diabetes mellitus | |||
| Present | 18 (13%) | 118 (87%) | 0.55 |
| Absent | 94 (11%) | 726 (89%) | |
| Coexistence of malignancy | |||
| Present | 21 (13%) | 140 (87%) | 0.56 |
| Absent | 91 (12%) | 704 (88%) | |
| Coexistence of asthma | |||
| Present | 3 (10%) | 25 (90%) | 0.86 |
| Absent | 109 (12%) | 819 (88%) | |
| Coexistence of arrhythmia or angina pectoris | |||
| Present | 11 (11%) | 87 (89%) | 0.87 |
| Absent | 101 (12%) | 757 (88%) | |
| FEV1% | |||
| < 70% | 52 (16%) | 281 (84%) | < 0.01 |
| ≥ 70% | 60 (10%) | 563 (90%) | |
| Lobe | |||
| RU | 33 (11%) | 256 (89%) | 0.18 |
| RM | 4 (7%) | 54 (93%) | |
| RL | 28 (12%) | 203 (88%) | |
| LU | 34 (15%) | 186 (85%) | |
| LL | 13 (8%) | 145 (92%) | |
| Operative approach | |||
| C-VATS + RATS | 51 (15%) | 290 (85%) | 0.02 |
| H-VATS + Open | 61 (10%) | 554 (90%) | |
| Operative procedure | |||
| Lobectomy or more | 87 (12%) | 622 (88%) | 0.36 |
| Sublobar resection | 25 (10%) | 222 (90%) | |
FEV1% forced expiratory volume % in one second, RU right upper, RM right middle, RL right lower, LU left upper, LL left lower, C complete, VATS video-assisted thoracic surgery, RATS Robot-assisted Thoracic Surgery, H hybrid