Characteristics of 36 asthmatic children completing the study with≥80% adherence with home spirometry
| Male/female n | 25/11 |
| Age yrs | 10.4±2.5 |
| Age of onset of asthma yrs | 2.8±2.1 |
| Maintenance medication: | |
| Inhaled corticosteroids % | 100 |
| Short-acting bronchodilators on demand % | 100 |
| Long-acting bronchodilators % | 44 |
| LTRA % | 0 |
| Exacerbations requiring systemic corticosteroids % | 0 |
| Smoking parent(s) % | 31 |
| Positive skin prick test or specific IgE to common inhalant allergens % | 89 |
| History of asthma in parent(s) or sibling(s) % | 78 |
| Log PD20-methacholine µg | 1.98 (1.28–2.91) |
| FEV1 % pred | 99.1±12.6 |
| QOL children 0–7# | 6.0±0.81 |
| QOL caregiver 0–7¶ | 6.4±0.48 |
Data are presented as mean±sd or as median (interquartile range) unless otherwise stated. LTRA: leukotriene receptor antagonists; Ig: immunoglobulin; PD20-methacholine: provocative dose of methacholine causing a 20% fall in forced expiratory volume in one second (FEV1); % pred: % predicted; QOL: quality of life. #: disease-specific QOL of children ≥7 yrs old (n = 34); ¶: disease-specific QOL of caregivers.