Table 3. COVID-19 severity by population characteristics.

	COVID-19 severity
Population characteristics	No. of subjects	No hospitalization	Hospitalization	Intensive care unit and/or deceased
Total No. of subjects (%)	323 (100)	108 (33)	162 (50)	53 (16)
Age (years) median (25th,75th percentile)	55 (46, 62)	49 (41, 57)	57 (51, 63)	62 (53, 67)
P value a	<0.001
Sex
Male, n (%)	174 (100)	44 (25)	94 (54)	36 (21)
Female, n (%)	149 (100)	64 (43)	68 (46)	17 (11)
P value b	0.002
Kidney disease
Yes, n (%)	34 (11)	7 (21)	13 (38)	14 (41)
No, n (%)	289 (89)	101 (35)	149 (52)	39 (13)
P value b	<0.001
Other chronic disease
Yes, n (%)	220 (100)	54 (25)	119 (54)	47 (21)
No, n (%)	103 (100)	54 (52)	43 (42)	6 (6)
P value b	<0.001
National origin
Western Europe, n (%)	224 (100)	76 (34)	113 (50)	35 (16)
Other, n (%)	99 (100)	32 (32)	49 (49)	18 (18)
P value b	0.844
Days between blood sampling and diagnosis
median (25th,75th percentile)	0 (-1, 393)	335 (22.5, 639.5)	0 (-1, 0)	0 (-2, 1)
P value a	<0.001

^a Associations tested using Kruskal-Wallis rank test.

^b Associations tested using Pearson’s chi-squared test.