Table 3.

Adjusted^a percent and risk ratio (ARR) of ETS exposed versus unexposed children with asthma for each of five outcomes due to wheezing, stratified by age group, United States, 2003-2010

	6-11 years (n=364) Percent (95% CI)			12-19 years (n=561) Percent (SE)
	ETS exposed (adjusted %)	Unexposed (adjusted %)	ARR (95% CI)	ETS exposed (adjusted %)	Unexposed (adjusted %)	ARR (95% CI)
Missed school days past 12m
0 days	47.9	65.2	0.7 (0.6, 1.0)*	80.0	78.9	1.0 (0.9, 1.2)
1-7 days	37.3	27.0	1.4 (1.0, 1.9)*	16.1	17.0	1.0 (0.6, 1.5)
8+ days	14.7	7.8	1.9 (1.1, 3.3)*	3.9	4.1	0.9 (0.5, 1.7)
Healthcare visits past 12m for wheezing
No visits	47.0	57.9	0.8 (0.6, 1.1)	67.2	73.2	0.9 (0.8, 1.1)
1-2 visits	33.5	28.6	1.2 (0.9, 1.5)	24.4	20.4	1.2 (0.9, 1.6)
3+ visits	19.6	13.6	1.4 (0.8, 2.5)	8.4	6.4	1.3 (0.8, 2.1)
Nights w/disturbed sleep past 12m
None	45.2	69.0	0.7 (0.5, 0.8)*	68.3	68.1	1.0 (0.9, 1.2)
<1 night per week	28.7	19.5	1.5 (1.1, 1.9)*	20.7	20.8	1.0 (0.8, 1.3)
1+ nights per week	26.1	11.6	2.3 (1.4, 3.6)*	11.0	11.1	1.0 (0.7, 1.5)
Activity limitation past 12m
None	54.5	71.9	0.8 (0.6, 1.0)*	69.1	72.2	1.0 (0.8, 1.1)
A little	27.9	19.0	1.5 (1.0, 2.1)*	19.5	17.8	1.1 (0.8, 1.5)
Fair/moderate amount/a lot	17.6	9.1	1.9 (1.1, 3.4)*	11.4	10.0	1.1 (0.7, 1.8)
Wheezing during exercise past 12m
No	43.5	70.2	0.6 (0.5, 0.8)*	57.7	53.4	1.1 (0.9, 1.3)
Yes	56.5	29.8	1.9 (1.3, 2.9)*	42.3	46.6	0.9 (0.7, 1.2)

Note: Conditional marginal proportions (adjusted percents) and ARRs were estimated using ordinal regression models for the ordered levels of the outcome variables.

^aAdjusted for sex, race/ethnicity and poverty status, household ownership, and household size.

^*95% confidence interval excluded 1.0 prior to rounding.