Demographic data and baseline characteristics of patients
| Mean (SD) | |
|---|---|
| FEV1 = forced expiratory volume in 1 second. | |
| *Baseline FEV1 was defined as the measurement made before enrolment in the study, following initial treatment with oxygen and β agonists. | |
| Number of patients | 184 |
| Age (years) | 35.4 (10.3) |
| Duration of asthma (years) | 19.1 (12.8) |
| Current smokers (%) | 29.9 |
| Allergic rhinitis (%) | 56.6 |
| Baseline FEV1 (l)* | 1.6 (0.6) |
| Baseline FEV1 (% predicted) | 46.7 (15.8) |