Table 1.

Sample characteristics and ETS exposure status, children 6-19 years of age^a with asthma^b, United States, 2003-2010

	Unweighted number	Weighted %	ETS exposedc % (SE)	p-valued
Total n	925	100	53.3 (3.2)
Age group
6-11 years	364	40.5	58.6 (4.2)	0.05
12-19 years	561	59.5	49.7 (3.7)
Sex
Male	506	53.4	51.6 (3.8)	0.45
Female	419	46.6	55.2 (4.2)
Race/ethnicity
Non-Hispanic white	235	55.9	52.2 (5.2)	<0.001
Non-Hispanic black	354	20.6	67.9 (3.3)
Mexican American	202	10.2	37.5 (3.3)
Other	134	13.3	41.1 (6.4)
Poverty status
<1.85 PIR	508	42.3	72.0 (2.6)	<0.001
≥1.85 PIR	417	57.7	39.5 (4.0)
Home ownership
Owns home	529	68.4	43.6 (4.3)	<0.001
Rents/other	396	31.6	74.2 (3.2)
Household size
4 or fewer	490	58.3	53.8 (3.6)	0.77
5 or more	435	41.7	52.6 (4.1)
Preventive asthma medication
Yes, in past month	248	31.0	48.5 (5.8)	0.18
No	677	69.0	55.4 (2.9)

PIR: poverty income ratio

^aExcludes smokers (children with serum cotinine level >10ng/mL or 12-19 year olds who reported use of tobacco products in the previous 5 days)

^bCurrent asthma is defined as reporting ever receiving a diagnosis of asthma from a health professional and having asthma at the time of the health survey.

^cDefined as serum cotinine level 0.5-10.0 ng/mL

^dp-value for family-wide chi square test