Table 3

Baseline data for 165 patients randomised to the study

Age (years)38 (range 18–64)
Sex (M:F)73:92
Smoking145 non-smokers,
20 ex-smokers
History of hay fever109 (66%)
FEV1 (% predicted)79.8% (95% CI 77.2 to 82.5)
PC20 methacholine (geometric mean)0.9 mg/ml (95% CI 0.69 to 1.07)
Regular inhaled corticosteroidsNone14 (8%)
1–400 μg56 (34%)
401–1000 μg59 (36%)
>1000 μg36 (22%)
  • FEV1 = forced expiratory volume in one second; PC20 = concentration of methacholine required to provoke a fall in FEV1 of 20%.