Demographic characteristics of the three groups of children
| Atopic asthmatic | Healthy atopic | Healthy nonatopic nonasthmatic | |
| Subjects n | 10 | 10 | 10 |
| Age yrs | 8.65±2.98 | 9.27±3.62 | 8.19±4.65 |
| Male/female n | 9/1 | 6/4 | 4/6 |
| IgE IU·L−1 | 1022 (129–3625) | 218 (128–265) | 40 (7–163) |
| Hay fever, eczema or both n | 9 | 6 | 1 |
Data are presented as mean±sd or mean (range) unless otherwise indicated. Ig: immunoglobulin.