Table 2.

Distribution of potential risk factors according to atopy-wheezing groups in 1,309 children.

	Non atopic			Atopic
Potential risk factors	overall	non-wheezers	wheezers	overall	non-wheezers	wheezers
	(N = 823)	(N = 613)	(N = 210)	(N = 486)	(N = 312)	(N = 174)
Social/familial and Demographic factors
Sex
Female	46.1	46.2	45.7	49.0	51.3	44.8
Male	53.9	53.8	54.3	51.0	48.7	55.2
Age
<5	36.1	31.0	51.0	33.7	28.8	42.5
6-7	35.5	37.0	31.0	35.8	37.2	33.3
>8	28.4	32.0	18.0	30.5	34.0	24.1
Mother education
Elementary education	21.9	20.6	25.7	22.4	21.2	24.7
More than elementary education	47.3	48.1	50.5	35.8	48.4	45.4
More than high school	29.4	31.3	23.8	30.2	30.4	29.9
Parental Asthma
No	85.4	87.8	78.6	88.9	92.3	82.8
Yes	14.6	12.2	21.4	11.1	7.7	17.2
Dirt and Infections
Routine cleaning in all the rooms
No	4.7	3.4	8.6	3.3	2.2	5.2
Yes	95.3	96.6	91.4	96.7	97.8	94.8
Having attended day care
No	83.6	85.8	77.1	84.6	84.3	85.1
Yes	16.4	14.2	22.9	15.4	15.7	14.9
Rodents in the household
No	41.4	44.5	32.4	44.7	43.3	47.1
Yes	58.6	55.5	67.6	55.3	56.7	52.9
Tgondi
No	80.1	80.6	78.6	84.8	86.2	82.2
Yes	19.9	19.4	21.4	15.2	13.8	17.8
IgG4
No detectable	86.4	87.3	83.8	79.4	80.4	77.6
Detectable	13.6	12.7	16.2	20.6	19.6	22.4
Respiratory symptoms
No	68.3	72.1	56.7	69.2	73.2	60.8
For 1-7 days	26.6	24.7	32.3	24.3	21.9	29.2
For ≥8 days	5.1	3.2	11.0	6.5	4.9	10.0
Diarrhoea
No	24.8	26.1	20.7	23.0	23.5	22.1
For 1-7 days	43.9	45.6	38.7	47.5	49.0	44.3
For ≥8 days	31.3	28.3	40.6	29.5	27.5	33.6