Table 1 Characteristics : Characteristics of the study population.
Asthma-allergy day-care centres | Ordinary day-care centres | |||
|---|---|---|---|---|
n | % | n | % | |
Age | 1000 | - | 4886 | - |
1 | 49 | 4.9 | 203 | 4.2 |
2 | 219 | 21.9 | 916 | 18.8 |
3 | 221 | 22.1 | 976 | 20.0 |
4 | 192 | 19.2 | 1017 | 20.8 |
5 | 202 | 20.2 | 1168 | 23.9 |
6 | 116 | 11.6 | 606 | 12.4 |
Boys | 545 | 54.5 | 2476 | 50.7 |
Parts of Sweden | ||||
South (Götaland) | 416 | 41.6 | 2135 | 43.7 |
Central (Svealand) | 394 | 39.4 | 1841 | 37.7 |
North (Norrland) | 190 | 19.0 | 910 | 18.6 |