Table 4.

Details of clinical treatment in patients of age ≥ 18 years

	SARS-CoV-2	Influenza A	RSV	P value
n	430	163	35	–
Length of hospital stay, days	7.2 (3.8; 13.7)	7.3 (4.2; 11.4)	6.0 (3.7; 12.9)	0.501
Intensive care unit
Frequency	73 (17.0%)	28 (17.2%)	10 (28.6%)	0.220
Length of stay, days	4.0 (2.0; 7.9)	5.2 (2.3; 7.8)	5.6 (2.6; 10.5)	0.531
Mechanical invasive ventilation
Frequency	23 (5.3%)	6 (3.7%)	4 (11.4%)	0.162
Duration, days	3.8 (2.0; 7.0)	6.2 (4.0; 18.3)	4.6 (1.8; 7.6)	0.229
NIV
Frequency	26 (6.0%)	13 (8.0%)	7 (20.0%)	0.017
Duration, days	2.0 (1.0; 4.0)	3.0 (1.5; 4.5)	5.0 (1.0; 7.0)	0.413
Oxygen supplementation
High-flow during stay	31 (7.2%)	11 (6.7%)	4 (11.4%)	0.531
Low-flow during stay	205 (47.7%)	93 (57.1%)	24 (68.6%)	0.013
Upon admission	120 (27.9%)	64 (39.3%)	9 (25.7%)	0.025

Numbers and percentages, or median values and quartiles (in parentheses) are given

Statistical comparisons between the infection groups were performed with the exact test according to Fisher-Freeman-Halton, for the sum values (length, duration) using the Kruskal–Wallis test

NIV, non-invasive ventilation