Demographic and health characteristics of subjects
| Characteristics | Children with asthma (n=65) | Children with wheeze (n=50) | Other children whose blood samples were available (n=922) | p Value |
|---|---|---|---|---|
| Sex: | ||||
| Boys | 66.2 | 64.0 | 50.9 | 0.014 |
| Girls | 33.8 | 36.0 | 49.1 | |
| School grade: | ||||
| 3rd | 33.8 | 42.0 | 35.6 | 0.367 |
| 4th | 40.0 | 30.0 | 30.0 | |
| 5th | 26.2 | 28.0 | 34.5 | |
| Serum IgE concentration: | ||||
| 0–249 IU/ml | 16.9 | 34.0 | 79.1 | <0.001 |
| ≥250 IU/ml | 83.1 | 66.0 | 20.9 | |
| Environmental tobacco smoke: | ||||
| Yes | 55.4 | 62.0 | 61.9 | 0.576 |
| No | 44.6 | 38.0 | 38.1 | |
| Study community: | ||||
| Osaka | 22.7 | 16.0 | 18.9 | 0.404 |
| Kimitsu | 40.0 | 52.0 | 42.5 | |
| Obitsu | 18.5 | 12.0 | 19.0 | |
| Miyazaki | 13.8 | 20.0 | 19.6 | |