Patient characteristics | Value |
---|---|
Demographic | Â |
Gender, n (%) | Â |
 Male | 12 (100) |
Age (years), mean (SD) | 65 (6) |
Education background, n (%) | Â |
 Secondary school | 2 (17) |
 High school | 6 (50) |
 Graduate and above | 4 (33) |
Current smoker, n (%) | 0 (0) |
Ex-smoker, n (%) | 12 (100) |
Comorbidities, n (%) | Â |
 Yes | 7 (58) |
 No | 5 (42) |
Clinical characteristics | Â |
Pulmonary function | Â |
 FEV1a (L), mean (SD) | 1.41 (0.51) |
 FEV1/Predicted (%), mean (SD) | 47 (16) |
 FVCb (L), mean (SD) | 2.53 (0.56) |
 FEV1/FVC (%), mean (SD) | 54 (12) |
Global Initiative for chronic obstructive lung disease stagec, n (%) | Â |
 2 | 4 (33) |
 3 | 6 (50) |
 4 | 2 (17) |
Modified medical research council, n (%) | Â |
 0 | 1 (8) |
 1 | 9 (75) |
 3 | 2 (17) |
COPD assessment test score, mean (SD) | 14 (3) |
6-Min walking distance (m), mean (SD) | 476 (65) |