TABLE 2.

Sample characteristics (n = 845)

Characteristic
Child age, mean (SD)	6.9 (4.2)
≤4 y	32%
>4 to <10 y	43%
≥10 y	24%
Child sex
Male	61%
Female	39%
Mother’s education
Post-secondary education	71%
Less than post-secondary education	29%
Mother’s ethnicity
Canadian/North American	48%
European/East European	21%
Other	31%
Primary care visits in previous 6 mo, mean (SD); median	2.5 (3.4); 1.0
Asthma triggers, mean (SD)	5.5 (2.6)
Currently taking at least one daily dose of anti-inflammatory agent	53%
Exposed to environmental tobacco smoke	22%