Table 4.
Relationship between patient characteristics or operative factors and postoperative atelectasis or pneumonia
| Atelectasis or pneumonia | p value | ||
|---|---|---|---|
| Present | Absent | ||
| Gender | |||
| Male | 37 (6%) | 548 (94%) | 0.01 |
| Female | 10 (3%) | 361 (97%) | |
| Age | |||
| < 75 years | 31 (4%) | 668 (96%) | 0.25 |
| ≥ 75 years | 16 (6%) | 241 (94%) | |
| Smoking history | |||
| Present | 39 (6%) | 556 (94%) | < 0.01 |
| Absent | 8 (2%) | 353 (98%) | |
| Coexistence of ILD | |||
| Present | 2 (9%) | 20 (91%) | 0.35 |
| Absent | 45 (5%) | 889 (95%) | |
| Coexistence of diabetes mellitus | |||
| Present | 6 (4%) | 130 (96%) | 0.76 |
| Absent | 41 (5%) | 779 (95%) | |
| Coexistence of malignancy | |||
| Present | 8 (5%) | 153 (95%) | 0.97 |
| Absent | 39 (5%) | 756 (95%) | |
| Coexistence of asthma | |||
| Present | 7 (25%) | 21 (75%) | < 0.01 |
| Absent | 40 (4%) | 888 (96%) | |
| FEV1% | |||
| < 70% | 23 (7%) | 310 (93%) | 0.03 |
| ≥ 70% | 24 (4%) | 599 (96%) | |
| Coexistence of arrhythmia or angina pectoris | |||
| Present | 8 (8%) | 90 (92%) | 0.11 |
| Absent | 39 (5%) | 819 (95%) | |
| Lobe | |||
| RU | 18 (6%) | 271 (94%) | 0.23 |
| RM | 2 (3%) | 56 (97%) | |
| RL | 10 (4%) | 221 (96%) | |
| LU | 14 (6%) | 206 (94%) | |
| LL | 3 (2%) | 155 (98%) | |
| Operative approach | |||
| C-VATS + RATS | 12 (4%) | 329 (96%) | 0.13 |
| H-VATS + Open | 35 (6%) | 580 (94%) | |
| Operative procedure | |||
| Lobectomy or more | 38 (5%) | 671 (95%) | 0.28 |
| Sublobar resection | 9 (4%) | 238 (96%) | |
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