Table 3.

Association between multiple viral infections and outcome of hospitalized bronchiolitis patients^a.

	PICU admission
	Unadjusted model		Adjusted model
Predictor	OR (95% CI)	P	OR (95% CI)	P
Number of viral infections	3.57 (2.13–5.97)	<0.01	2.42 (1.14–5.27)	0.03
Multiple viral infectionsb	3.89 (2.28–6.64)	<0.01	2.86 (1.28–6.42)	0.01

PICU: pediatric intensive care unit; OR: odds ratio; CI: confidence interval.

^aVariables adjusted in multivariable logistic/linear regression: age categories, weight, bronchodilator use, feeding type, antibiotic use, systemic steroid use, heart rate at admission.

^bMultiple viral infection: ≥2 strains.