Table 1

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 patients184
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)