Table 2.
Operative outcomes among the study population
| All cases (n=609) |
Non-COPD (n=337) |
In-between (n=58) |
COPD (n=214) |
p value | |
| Surgical procedure | |||||
| Lobectomy | 78.7 (479) | 79.8 (269) | 82.8 (48) | 75.7 (162) | 0.153 |
| Operation time, minutes* | 232.3 (31–873) | 220.5 (31–604) | 243.6 (111–471)(1) | 248.5 (45–873)(3) | 0.013 |
| Postoperative outcomes | |||||
| Prolonged oxygen treatment | 25.5 (155) | 15.4 (52) | 20.7 (12) | 42.5 (91)(2)(3) | 0.001 |
| Complicationsa | 19.0 (116) | 13.9 (47) | 20.7 (12) | 26.6 (57)(3) | 0.001 |
| Arrythmia | 9.2 (56) | 7.7 (26) | 12.1 (7) | 10.7 (23) | 0.356 |
| Minitracheostomy | 2.8 (17) | 2.1 (7) | 1.7 (1) | 4.2 (9) | 0.293 |
| Prolonged air leakage | 2.8 (17) | 1.8 (6) | 1.7 (1) | 4.7 (10)(3) | 0.116 |
| Prolonged ventilation | 3.1 (19) | 2.1 (7) | 3.4 (2) | 4.7 (10) | 0.230 |
| Pneumonia | 5.3 (32) | 2.1 (7) | 6.9 (4) | 9.8 (21)(3) | 0.001 |
| Prolonged postoperative stay | 26.6 (162) | 19.3 (65) | 27.6 (16) | 37.9 (81)(3) | 0.001 |
| Postoperative stay, days* | 12.0 (3–291) | 9.9 (4–39) | 11.1 (5–35) | 15.5 (3–291)(3) | 0.001 |
| Postoperative deaths | |||||
| 30-day motality | 0.2 (1) | 0.3 (1) | 0 (0) | 0 (0) | 1.000 |
| Hospital motality | 0.2 (1) | 0 (0) | 0 (0) | 0.5 (1) | 0.447 |
n indicates number. * Data are shown as mean (range). All other data are shown as % (number). a Complications include arrhythmia, the need of minitracheostomy, prolonged air leakage, prolonged ventilation, and pneumonia.
(1) indicates a siginificant difference between the non-COPD and in-between groups. (2) indicates a significant difference between the in-between and COPD groups. (3) indicates a significant difference between the non-COPD and COPD groups.