Obstructive group (%FEV1 ≤ 70%n = 22) | Non-obstructive group (%FEV1 > 70%, n = 33) | |||||
Predicted postoperative values (ppo-values) | COPD (C-group, n = 22) Tiotropium | Smoker (S-group, n = 10) Tiotropium | Non-smoker (N-group, n = 23) Control | p value | ||
Mean ± SD | Mean ± SD | Mean ± SD | C-g vs S-g | C-g vs N-g | S-g vs N-g | |
ppo-VC (L) | 2.43 ± 0.51 | 2.22 ± 0.41 | 2.38 ± 0.56 | 0.2123 | 0.1014 | 0.1750 |
ppo-FEV1 (L) | 1.49 ± 0.38 | 1.87 ± 0.40 | 1.85 ± 0.47 | 0.0323 | 0.0955 | 0.1692 |
ppo-VC% (predicted, %) | 85.4 ± 13.0 | 79.1 ± 17.7 | 90.2 ± 15.4 | 0.0906 | 0.0844 | 0.0238 |
ppo-FEV1/FVC (%) | 46.8 ± 6.5 | 86.0 ± 9.8 | 60.7 ± 5.9 | <0.0001 | 0.0004 | 0.0701 |