Patient characteristics, patients with GOLD stage IV COPD
| GOLD stage IV COPD without CMH | GOLD stage IV COPD with CMH | |
|---|---|---|
| Number of subjects | 8 | 8 |
| Age (range) | 58 (57–62) | 54 (48–61) |
| Sex | ||
| Male | 3 | 4 |
| Female | 5 | 4 |
| Pack-years (range) | 44.9 (30–72) | 31.3 (15–40) |
| Smoking status | Ex-smoker | Ex-smoker |
| % predicted FEV1 (range) | 19.2 (12.23–25.69) | 14.6 (13.12–20.12) |
| FEV1/FVC (range) | 0.30 (0.19–0.66) | 0.23 (0.16–0.29) |
| Bronchiectasis | None | None |
Age, pack-years, predicted FEV1 and FEV1/FVC are represented as mean (range).
CMH, chronic mucus hypersecretion.