Table 3. Bivariate and multiple regression analyses between recent wheeze and sociodemographic and lifestyle variables.

Variables	Categories	Prevalence	Bivariate			Multivariate
		(%)	OR	95% CI	p	OR	95% CI	p
Sex	Men	3.8	1			1
	Women	6.9	1.86	(1.13-3.08)	0.015	1.57	(0.92-2.68)	0.096
Age group (years)	21-30	4.4	1
	31-40	7.3	1.7	(0.73-3.95)	0.219
	41-50	4.9	1.12	(0.47-2.71)	0.795
	≥51	6.6	1.51	(0.58-4.01)	0.399
Ethnic group	Mestizo	6.4	1
	Other	4.5	0.69	(0.33-1.42)	0.314
Education	Primary	5.4	1			1
	Incomplete Secondary	6.7	1.24	(0.68-2.26)	0.477	1.19	(0.63-2.24)	0.579
	Completed Secondary	5.5	1	(0.59-1.69)	0.987	0.95	(0.54-1.66)	0.867
	University	8.5	1.61	(0.92-2.81)	0.092	1.46	(0.81-2.65)	0.203
Humidity at house	No	5.0	1
	Yes	9.5	1.99	(1.43-2.76)	<0.001
Mould at house	No	5.0	1			1
	Yes	11.4	2.42	(1.72-3.42)	<0.001	2.13	(1.48-3.06)	<0.001
Smoking habit in the past	Never	5.9	1			1
	Seldom	6.2	1.04	(0.68-1.60)	0.85	0.99	(0.63-1.57)	0.993
	Daily	13.2	2.4	(1.33-4.35)	0.004	1.86	(0.93-3.70)	0.076
Smoking habit in the present	Never	6.1	1
	Seldom	6.5	1.06	(0.62-1.81)	0.829
	Daily	14.3	2.56	(1.13-5.8)	0.024
Traffic around the house	Never	6	1
	Seldom	5.9	0.99	(0.52-1.88)	0.98
	Frequently in the day	5.7	0.95	(0.48-1.86)	0.888
	Day and night	7.7	1.31	(0.67-2.51)	0.424
Cat at home	No	5.6	1			1
	Yes	7.9	1.48	(1.04-2.02)	0.031	1.51	(1.06-2.13)	0.022
Dog at home	No	6.7	1
	Yes	6.1	0.9	(0.63-1.28)	0.563
Rhinitis ever	No	4.6	1			1
	Yes	17.2	4.31	(3.04-6.10)	<0.001	3.65	(2.53-5.29)	<0.001
Eczema ever	No	5.9	1
Yes	14.0	2.61	(1.56-4.36)	<0.001