. 2017 Jun 16;88(3):127–135. doi: 10.1016/j.anpede.2017.03.006

Table 2.

Demographic, socio-environmental and personal history associated with single virus infections and coinfections.

	Single virus n (%) 289 (64.5)	Coinfections n (%) 159 (35.5)	p-value
Demographic data
Male gender; n (%)	154 (53.3)	97 (61)	0.14
Age in months; mean (SD)	5.7 (6.4)	7.3 (5.9)	0.013

Socio-environmental data
Exclusive breast-feeding (previous or present); n (%)	131/254 (51.6)	82/136 (60.3)	0.11
Day care attendance; n (%)	51/239 (21.3)	51/134 (38)	0.001
Passive smoke exposure; n (%)	116/249 (46.6)	70/145 (48.3)	0.43

Family and personal history
Asthma in first degree relatives; n (%)	59 (20.4)	33 (20.8)	1
Underlying chronic disease; n (%)	72 (24.9)	31 (19.5)	0.2
Recurrent wheezing; n (%)	26 (9)	30 (18.9)	0.004
Prematurity^a; n (%)	80 (27.7)	30 (18.9)	0.04
Very low birth weight^b; n (%)	27 (9.3)	7 (4.4)	0.06

^{Bold values are values with statistical significance.}

<37 weeks.

<1500 g.