Subject characteristics according to asthma control
| Poorly controlled asthma | Controlled asthma | |
| Subjects n | 19 | 16 |
| Asthma symptoms days·last week−1 | 7 (4.75–7)*** | 0 (0–1) |
| Night waking due to asthma nights·last week−1 | 5 (3.75–7)*** | 0 (0–0) |
| Short-acting β-agonist use occasions·day−1 | 4 (2–5.50)*** | 0 (0–0.50) |
| Diurnal variability of PEF % | 25 (22.75–26.50)*** | 5 (5–5.50) |
| FEV1 % pred | 77 (63–83) | 89.50 (69–101.75) |
Results are expressed as median (25–75th percentiles) unless otherwise stated
PEF: peak expiratory flow
FEV1: forced expiratory volume in one second
***: p<0.001