Characteristics of patients with chronic obstructive pulmonary disease (COPD) and control subjects
| COPD(n = 10) | COPD/ICS(n = 10) | Control subjects(n = 8) | p Value* | p Value† | |
| Age (years) | 77 (8) | 75 (11) | 66 (17) | 0.236 | 0.360 |
| Sex (F/M) | 0/10 | 3/7 | 5/3 | ||
| FEV1 (% predicted) | 51 (16) | 50 (14) | 104 (22) | 0.001 | 0.001 |
| FEV1/VC (%) | 49 (10) | 48 (14) | 76 (3) | 0.001 | 0.001 |
| TLC (% predicted) | 106 (14) | 123 (27) | 119 (17) | 0.203 | 0.408 |
Data presented as mean (SD) values.
COPD, untreated patients with chronic obstructive pulmonary disease; COPD/ICS, patients with chronic obstructive pulmonary disease treated with inhaled corticosteroids; FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity; TLC, total lung capacity.
*COPD vs control subjects.
†COPD/ICS vs control subjects.