Table 1.

Characteristics of the cases and controls.

	Controls n = 208	Cases n = 87	P value
Personal characteristics
Female (%)	60.6	35.6	<0.001
Parents with > high school (%)	39.4	37.9	0.81
With allergic disease (%)	33.2	73.6	<0.001
Family history of asthma (%)	7.2	23.0	<0.001
Maternal smoking during pregnancy (%)	9.1	20.7	0.006
Early respiratory illness (%)	8.7	18.4	0.02
High tobacco smoke exposure (%)	51.0	49.4	0.81
Age, years (mean, SD)	11.5 (3.2)	11.1 (2.9)	0.31
Weight status
Actual overweight based on BMI (%)	29.8	33.3	0.55
Perceived overweight (%)	7.8	9.9	0.58
Activity levels
Higher activity level (%)	77.4	79.3	0.72
Dietary intake
Regular fast food and/or soft drink consumption (%)	54.3	65.5	0.08
Regular seafood consumption (%)	26.4	25.3	0.84
Regular vegetable consumption (%)	99.0	98.9	0.88
Regular fruit consumption (%)	99.5	98.9	0.52
Regular milk consumption (%)	95.2	96.6	0.60