Table III.

Bronchiolitis Severity Parameters During Single or Multiple Viral Respiratory Tract Infections

Total number of cases (n)	Intensive care unit admission		O2 supply		% 5SO2 at the hospital admission		O2 length		Length of hospitalization
	n	P	n	P	%SaO2	P	Days	P	Days	P
Single infections (n = 41)a	5	0.29*	24	0.85*	94 ± 4.4	0.82**	2 ± 2.9	0.14**	6 ± 4.5	0.52**
Multiple infections (n = 85)	5		47		94 ± 7.6		1 ± 2.4		5 ± 3.3
hRSVs(n = 96)b	7	0.70*	58	0.10*	93 ± 7.4	0.14**	2 ± 2.9	0.08**	6 ± 3.6	0.006 **
HboVs {n = 37)c	2	0.72*	17	0.12*	94 ± 4.5	0.89**	1 ± 1.7	0.06**	5 ± 3.6	0.50**
AdVs (n = 30)d	0	0.11	13	0.20	95 ± 4.3	0.34	1 ± 1.4	0.03	4 ± 2.5	0.011**
hMPVs (n = 17)e	0	0.36*	10	1.00*	93 ± 3.3	0.15**	1 ± 2.2	0.15**	5 ± 3.9	0.15**
HRVs{n = 11)f	0	0.60*	7	0.76*	96 ± 2.7	0.07**	2 ± 2.0	0.82**	6 ± 4.4	1.00**

n, number of children; % SaO₂, oxygen saturation percentage; O₂ supply, delivery of oxygen during hospitalization; O₂ length, length of O₂ supply.

Only P‐values in bold were considered as significant (see methods).

^aSingle versus Multiple viral infection cases.

^bhRSVs (hRSV‐A; hRSV‐B; dual hRSV‐A and B infection cases) in single or multiple infection cases versus other viral single or multiple infection cases.

^cHboVs in single or multiple infection cases versus other viral single or multiple infection cases.

^dAdVs in single or multiple infection cases versus other viral single or multiple infection cases.

^ehMPVs (hMPV‐A; hMPV‐B; hMPV‐A/B) in single or multiple infection cases versus other viral single or multiple infection cases.

^fHuman Rhinoviruses in single or multiple infection cases versus other viral single or multiple infection cases.

^*Fisher's exact test.

^**Wilcoxon rank sums test.