Table 1.

Demographic, clinical and laboratory parameters of RSV compared to Influenza A, Influenza B and SARS-CoV-2.

Parameter / virus (n)	RSV (318)	Influenza A (591)	Influenza B (289)	SARS-Cov-2 (342)	p
Demographic data
Age years	75.1 (14.3)&	72.9 (15.3)&&	75.7 (13.7)&&	70.8 (15.9)&&&	< 0.001
Gender f/m	135/183	261/330	135 / 154	168 / 174	0.301
Clinical symptoms
Cough%	71&	68	66	51&&	< 0.001
Headache%	7*,**	13	18	14	< 0.001
Weakness%	67#,##	67###,####	83	78	< 0.001
Enteritis	10$	21	20	17	< 0.001
Laboratory parameters
Body temperture °C	37.31 (0.97)&	37.54 (1.03)&&,&&&	37.27 (0.86)	37.31 (0.93)	< 0.001
Leukcocytes n/ul	10.1 (7.6)*,**	8.4 (5.8)	7.4 (6.7)	8.5 (11.7)	< 0.001
C-reactive protein mg/dL	62.6 (77.1)#	65.9 (81.0)	48.8 (68.8)##	83.4 (83.1)###	< 0.001
Lactate dehyrogenase IU/mL	265 (114)%	309 (474)	273 (176)	409 (632)%%	< 0.001
Glucose mg/dL	145 (64)$	137 (57)	135 (69)	129 (53)	0.03

(): standard deviation.

Demographic data:.

^& RSV vs. SARS: p = 0.01 (^&&Influenza B vs. Influenza A: p = 0.048 / ^&&&SARS—CoV-2 vs. Influenza A / B: p = 0.001, respectively).

Clinical Symptoms:.

^&RSV vs. SARS-CoV-2: p < 0.001 (^&&SARS-CoV-2 vs. Influenza A / B: p < 0.001, respectively).

*RSV vs. Influenza B: 0.04; **RSV vs. SARS-CoV-2 < 0.001.

^#RSV vs. Influenza B: p < 0.001, ^##RSV vs. SARS-CoV-2: p = 0.005 (^###Influemza A vs. Influenza B: p < 0.001; ^####Influenza A vs. SARS-CoV-2: p = 0.001).

^$RSV vs. Influenza A: < 0.001.

Laboratory parameters.

^&RSV vs. Influenza A: p = 0.014 (^&&Influenza A vs. Influenza B: p = 0.014 / ^&&&Influenza A vs. SARS-CoV-2: p = 0.010.

*RSV vs. Influenza A: p = 0.015 / ^⁎⁎RSV vs. Influenza B: p < 0.001.

^#RSV vs. SARS-CoV-2: p < 0.01 (^##Influenza B vs. Influenza A: p = 0.016 / ^###SARS-CoV-2 vs. Influenza A / B: p < 0.01, respectively).

^%RSV vs. SARS-CoV-2: p < 0.01 (^%%SARS vs. Influenza A / B: p < 0.01, respectively).

^§RSV vs. SARS-CoV-2: p = 0.020.