Characteristics | Excluded subjects(n = 159) | Included subjects(n = 122) |
---|---|---|
Data are presented as median values (interquartile range) unless stated otherwise. | ||
BHR, bronchial hyperresponsiveness; post BD, after administration of bronchodilator. | ||
*Calculated for individuals who ever used inhaled corticosteroids only. | ||
Differences tested by χ2 test (categorical variables) or Mann-Whitney U test (continuous variables). | ||
Males (%) | 99 (62) | 71 (58) |
Age of onset of symptoms (years) | 4 (2–14) | 6 (2–21) |
Mean daily dose of inhaled corticosteroids (μg/day)* | – | 720 (426–1116) |
Initial testing | ||
Age (years) | 20 (15–28) | 28 (21–37) |
FEV1 % predicted post BD (%) | 94 (82–104) | 85 (68–97) |
BHR ⩽16.0 mg/ml (%) | 87 | 87 |
⩾1 positive skin test (%) | 98 | 87 |
Blood eosinophils (×106/l) | 385 (220–539) | 330 (220–528) |
Reversibility (% predicted) | 21 (14–31) | 25 (17–33) |
Smoking | ||
Pack years smoking | 0.0 (0.0–2.9) | 0.1 (0–5.6) |
Non/ex/current smokers (%) | 50/5/45 | 49/6/45 |