Table 2. Distribution of the prevalence of asthma and rhinitis symptoms in 13- and 14-year-olds, by type of school, in two surveys conducted in the city of Fortaleza, Brazil. 2006-2007 and 2010.

Symptom	2006-2007	p	2010	p
Total		Public		Private	Total		Public		Private
(n = 3,015)		(n = 2,165)		(n = 850)	(n = 3,020)		(n = 2,559)		(n = 461)
n°	%		n°	%		n°	%	n°	%		n°	%		n°	%
Cumulative wheezing		1,329	44.1		907	41.9		422	49.6	< 0.01	1,326	44.5		1,071	42.4		255	56.3	< 0.01
Active asthma		682	22.6		442	20.4		240	28.2	< 0.01	708	23.4		548	21.4		160	34.7	< 0.01
Number of attacks within the last 12 months
	1-3	528	17.5		334	15.4		194	22.8	< 0.01	547	18.1		424	16.6		123	26.7	< 0.01
	≥ 4	68	2.3		34	1.6		34	4.0	< 0.01	83	2.7		60	2.3		23	5.0	0.01
Sleep disturbed by wheezing
	< 1 night/week	204	6.8		140	6.5		64	7.5	0.29	198	6.6		162	6.3		36	7.8	0.23
	≥ 1 night/week	105	3.5		82	3.8		23	2.7	0.14	106	3.5		80	3.1		26	5.6	< 0.01
Speech-limiting wheezing		105	3.5		70	3.2		35	4.1	0.23	109	3.6		87	3.4		22	4.8	0.14
Exercise-induced wheezing		759	25.2		522	24.1		237	27.9	0.03	855	28.8		707	28.1		148	32.4	0.06
Dry cough at night		1,036	34.4		721	33.3		315	37.1	0.05	1.136	37.9		941	37.0		195	42.6	0.02
Physician-diagnosed asthma		350	11.6		220	10.2		130	15.3	< 0.01	433	14.5		353	13.9		80	17.5	0.04
Cumulative rhinitis		1,710	56.7		1.132	52.3		578	68.0	< 0.01	1,688	57.1		1,378	55.1		310	67.8	< 0.01
Current or active rhinitis		1,303	43.2		822	38.0		481	56.6	< 0.01	1,279	42.4		1.021	39.9		258	56.0	< 0.01
Rhinoconjunctivitis		565	18.7		336	15.5		229	26.9	< 0.01	535	17.7		417	16.3		118	25.6	< 0.01
Rhinitis-related impairment of daily activities
	None	567	18.8		314	14.5		253	29.8	< 0.01	590	19.5		454	17.7		136	29.5	< 0.01
	Mild	581	19.3		404	18.7		177	20.8	0.17	582	19.3		480	18.8		102	22.1	0.09
	Moderate	81	2.7		52	2.4		29	3.4	0.12	81	2.7		65	2.5		16	3.5	0.25
	Severe	60	2.0		41	1.9		19	2.2	0.54	37	1.2		29	1.1		8	1.7	0.27
Physician-diagnosed rhinitis		609	20.2		326	15.1		283	33.3	< 0.01	520	17.6		365	14.6		155	33.9	< 0.01