No (%) of children diagnosed with infantile asthma and their history
| AIN | Controls | |
|---|---|---|
| *Significant difference between groups (p = 0.0243). | ||
| Boys | 31 | 218 |
| Girls | 33 | 197 |
| Asthma | 0/64 (0.0%) | 41/415 (9.9%)* |
| Mean (SD) age (years) | 6.1 (1.9) | 6.2 (0.3) |
| Smoking in family | 12 (19.4%) | 84 (20.2%) |