Table 5.

Predictors of asthma using the different asthma definitions

Predictors	ECRHS		Modified ECRHS
	OR(95%CI)		OR(95%CI)
	Univariate	Multivariate	Univariate	Multivariate
Age
20–39	1		1
>=40	1.13(0.96,1.33)		1.11(0.95,1.29)
Sex (female)	1.37(1.17,1.60)	1.34(1.15,1.57)	1.06(0.92,1.22)
History of Nasal allergy	1.71(1.43,2.04)	1.69(1.42,2.02)	2.33(1.97,2.76)	2.65(1.92,3.66)
Cigarette smoking	1.49(0.87,2.55)		1.51(1.05,2.17)	1.41(0.97,2.05)