Table 2.

Critical and non-critical patient characteristics: demographic, length of stay, and respiratory parameters at admission.

Variable	Group	n	Mean	Median	Q1	Q3	IQR	Std	FDR adjusted p value	Test
Age [year]	Non-critical	205	63.05	64	52.08	76	23.92	17.17	0.084	t-test
	critical	162	66.81	68.87	55.64	77.83	22.18	14.54
Length of stay [day]	Non-critical	205	6.72	5	3	8	5	6.73	8.50E-26	Mann–Whitney test
	Critical	162	18.17	14	8.25	21.75	13.5	15.37
Weight [Kg]	Non-critical	194	84.37	82	72	95	23	20.24	0.2	t-test
	Critical	157	87.96	88	75	100	25	18.84
BMI	Non-critical	194	29.21	28.7	25.35	32.37	7.02	5.18	0.28	Mann–Whitney test
	Critical	157	30.06	29.4	25.9	33.1	7.2	5.37
SpO2Room [%]	Non-critical	205	93.34	94	91	97	6	4.4	2.43E-09	Mann–Whitney test
	Critical	148	89.31	90.5	85	94.25	9.25	6.24
SpO2O2Support [%]	Non-critical	145	95.97	96	95	98	3	1.96	0.03	Mann–Whitney test
	Critical	157	94.67	95	93	97	4	3.83
Breaths number	Non-critical	182	18.29	18	15	20	5	4.76	3.03E-07	Mann–Whitney test
	Critical	162	21.59	20	18	24.75	6.75	6.56