Bronchial epithelial cell biopsy cohort
| Controls | Asthma | ||
| ICS | No ICS | ||
| Subjects n | 83 | 50 | 26 |
| Age# years | 46 | 48.6** | 46.3 |
| Female# % | 45.8 | 54 | 42.3 |
| FEV1# % pred | 100 | 82**** | 83**** |
| BMI kg·m−2 | 23.6 | 27*** | 27*** |
| ICS dose µg·day−1 | NA | 800 (200–1000) | NA |
FEV1: forced expiratory volume in 1 s; BMI: body mass index; ICS: inhaled corticosteroids (dose equivalent to beclomethasone); NA: not applicable. #: mean values. **: p<0.01, ***: p<0.001, ****: p<0.0001, asthma versus controls.