Table 1.

Prevalence of asthma, asthma-related symptoms, allergic rhinitis and eczema

	1995	2001	Percent increase (95% CI)	Annual change of prevalence, %	p
	No=2,866	No=1,657
Asthma ever	94	91	+2.2%	0.44	0.00053
	(3.3%)	(5.5%)	(0.44<OR<0.81)
Symptoms related to asthma:
-wheezing ever	153	185	+5.9%	1.18	<0.00001
	(5.3%)	(11.2%)	(0.38<OR<0.60)
-wheezing during past 12 months	78	136	+5.5%	1.1	<0.00001
	(2.7%)	(8.2%)	(0.25<OR<0.44)
-wheezing during exercise	207	274	+9.3%	1.86	<0.00001
	(7.2%)	(16.5%)	(0.36<OR<0.53)
-night cough	111	139	+4.5%	0.9	<0.00001
	(3.9%)	(8.4%)	(0.35<OR<0.60)
Allergic rhinitis ever	390	343	+7.1%	1.42	<0.00001
	(13.6%)	(20.7%)	(0.50<OR<0.77)
Eczema ever	330	260	+4.2%	0.84	0.0003
	(11.5%)	(15.7%)	(0.61<OR<0.87)