Table 1. Prevalence (%) of asthma and physician-diagnosed asthma in Brazilian adolescents according to macro-regions, sex, age, and type of school network. ERICA, 2013-2014.

Variable	Sample	Estimated population	Did not answer questionnaire	Active asthma		Physician-diagnosis
			%	%	95%CI	%	95%CI
Macro-regions
North	15,073	855,362	27.0	9.7	9.0-10.5	13.5	12.7-14.2
Northeast	23,167	2,165,033	27.0	10.1	8.8-11.4	9.0	8.1-9.9
Midwest	9,727	778,010	31.7	13.6	11.9-15.3	6.9	6.0-7.8
Southeast	17,080	5,153,506	28.6	14.5	12.9-16.1	7.6	6.8-8.3
South	9,542	1,195,789	19.0	13.9	12.5-15.3	10.4	8.9-11.9
Sex
Female	41,225	5,052,137	24.2	14.8	13.7-16.0	8.5	7.8-9.1
Male	33,364	5,095,563	30.4	11.2	10.3-12.2	8.9	8.2-9.5
Age (in years)
12-14	34,141	5,348,201	22.4	12.6	11.3-13.9	8.9	8.3-9.5
15-17	40,448	4,799,499	30.6	13.4	12.3-14.6	8.4	7.7-9.1
Type of school
Private	15,882	1,765,446	21.6	15.9	14.2-17.7	9.6	8.7-10.5
Public	58,707	8,382,253	28.3	12.4	11.4-13.4	8.5	7.9-9.0
Brazil	74,589	10,147,700	27.1	13.1	12.1-13.9	8.7	8.2-9.1