Characteristics of the 29 patients with cystic fibrosis
| Characteristic | |
| Sex (M/F) | 15/14 |
| Age (years)* | 32 (22–47) |
| Duration of chronic infection (years)* | 19 (1–35) |
| FEV1 (%)* | 48 (23–117) |
| FVC (%)* | 89 (58–135) |
| During intravenous antibiotic treatment | 21 |
| In between intravenous antibiotic treatment | 8 |
*Values are medians (range).
F, female; FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity; M, male.