Table 1.
Characteristics of the study population
| Sensitized children (n = 659) % | Non-sensitized children (n = 993) % | All children (n = 1866) % | Difference by sensitization status p-value | |
|---|---|---|---|---|
| Male sex | 56.8 | 47.2 | 51.0 | <0.001 |
| Current wheeze | 20.0 | 5.1 | 10.7 | <0.001 |
| Physician-diagnosed asthma | 19.7 | 5.9 | 10.9 | <0.001 |
| Current asthma | 17.1 | 4.1 | 8.9 | <0.001 |
| Current asthma medication | 25.0 | 7.8 | 13.8 | <0.001 |
| Allergic sensitization | - | - | 39.9 | - |
| Current rhinitis | 46.1 | 10.4 | 23.3 | <0.001 |
| Physician-diagnosed rhinitis | 25.5 | 2.3 | 11.2 | <0.001 |
| Current eczema | 30.8 | 16.8 | 21.2 | <0.001 |
| Physician-diagnosed eczema | 24.7 | 10.2 | 15.3 | <0.001 |
| Parental asthma | 31.0 | 20.7 | 24.0 | <0.001 |
| Parental smoking | 20.5 | 21.7 | 21.1 | 0.545 |
| Damp housing | 11.9 | 9.6 | 10.8 | 0.141 |
| Swimming pool attendance ≥1/week | 15.1 | 13.7 | 14.0 | 0.436 |
Prevalence (%) of conditions, risk factors and environmental factors in the OLIN pediatric cohort 2010. Data are presented separately for all children in the study population and the children in the study population by sensitization status. P value calculated by Chi-square test.