Children’s characteristics
| Subject characteristics | Single visit (n=19) | Repeat visits (n=24) |
|---|---|---|
| Results expressed as number or mean (SD). | ||
| Boys/girls (n) | 13/6 | 18/6 |
| Age (y) | 7–13 | 9–14 |
| Eczema/hayfever (%) | 42/53 | 58/50 |
| BTS step (%) | ||
| Step 2 | 63 | 79 |
| Step 3 + 4 | 26 | 21 |
| Not known | 11 | |
| Baseline lung function (% predicted)33 | ||
| FEV1 | 87.2 (10.9) | 83.5 (10.0) |
| PEF | 85.6 (17.0) | 85.4 (12.2) |
| FEF25–75 | 66.7 (20.8) | 65.7(18.8) |
| FEF50 | 73.2 (22.3) | 70.6(17.9) |
| Exercise induced asthma (n) | 11 | 15 |
| Habitual level of exercise (%) | ||
| No intense activity | 5 | |
| Some intense activity | 79 | 62 |
| All intense activity | 16 | 38 |
| Competitive exercise (%) | 53 | 67 |