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Study Subject Characteristics
| All Patients | |
|---|---|
| Number | 21 |
| Age, yr, mean (SEM) | 58.9 (1.68) |
| Male, n (%) | 8 (38.1) |
| Cough duration, yr, median (IQR) | 8 (2.28–16) |
| Smoking status | |
| Never, n (%) | 11 (52) |
| Ex-smoker, n (%) | 10 (48) |
| Pack-years, n = 10, median (IQR) | 9.5 (3.5–24) |
| Years since quit, median (IQR) | 32 (21.5–37.25) |
| FEV1, % predicted, mean (SEM) | 113 (4.36) |
| FVC, % predicted, mean (SEM) | 119 (3.81) |
Definition of abbreviation: IQR = interquartile range.
