Table 1.

Characteristics of the SICAS study population

	All study participants, no. (%)
Population	N = 180 *
Age (years), mean (range)	8.1 (4-14)
Female sex	85 (47%)
BMI (kg/m2), mean (range)	19.3 (13.7-37.2)
Race/ethnicity
Black/African American	30 (17%)
Hispanic/Latino	104 (58%)
White	26 (15%)
Mixed/other	19 (11%)
Environmental tobacco smoke	39 (22%)
Use of controller medication	103 (58%)
Atopic asthma (any allergen sensitization)	107 (60%)
Annual household income
< $25,000	36 (20%)
≥ $25,000	84 (47%)
Missing	59 (33%)

*180 SICAS participants provided saliva samples. One participant was missing all demographic data. SICAS: School Inner-City Asthma Study.