Respiratory virus is a real pathogen in immunocompetent community-acquired pneumonia: comparing to influenza like illness and volunteer controls

Table 4 Severity of illness in community acquired pneumonia patients with different etiology

	Flu A	Flu B	ADV	PIV-1	PIV-3	Rhv	HCoV OC43	Dual-virus	Virus positive	Virus negative	P values^†
Cases	24	5	2	2	10	2	2	5	52	97
Hospitalization^§*	21(87.5)	4(80.0)	1(50.0)	2(100)	8(80.0)	2(100)	2(100)	4(80.0)	42(80.8)	76(78.4)	0.729
Length of hospital stay (Median [IQR], days)	11(9–18)	13.5(9–17)	21	12(9.5-14.5)	10.5(6–12.8)	11(13–15)	19(18.5-19.5)	10(8.5-12.8)	11(8.8-17.3)	10(7.8-15)	0.268
Ventilation	2(8.3)	1(20.0)	0	0	0	0	0	0	3(5.8)	3(3.1)	0.722
Intensive care requirement	2(8.3)	1(20.0)	0	0	1(10.0)	0	0	0	4(7.7)	5(5.2)	0.720
ICU admission	1(4.2)	0	0	0	0	0	0	0	1(1.9)	3(3.1)	0.912
30-days mortality	1(4.2)	1(20.0)	0	0	1(10.0)	0	0	0	3(5.7)	2(2.1)	0.343

Note: *All data were showed as numbers (%) unless otherwise specified. ^†Comparisons were made between virus positive patients and virus negative patients by non-parametric Kruskal-Wallis test for quantitative characteristics and Fisher’s exact or Chi-square test for categorical variables, respectively. ^§Some patients denied hospitalization and were treated in Outpatient Clinic or Emergency Department. ICU: intensive care unit.

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