Table 2. Analytical and biomarker characteristics among COVID-19 survivors according to disease severity.

	All of them (n = 108)	Mild/moderate (n = 58)	Severe (n = 50)	P value
Serum parameters, median (p25; p75)
WBC count, cells/μL	6.1 (5.1; 6.6)	6.01 (5.0; 6.5)	6.2 (5.3; 6.7)	0.299
Glucose, mg/dL	95.0 (90.0; 111.0)	93.0 (87.5; 101.0)	100.5 (94.0; 117.7)	0.002
Creatinine, mg/dL	0.8 (0.7; 0.9)	0.8 (07; 0.9)	0.9 (0.8; 1.0)	0.048
ACE2, ng/mL	2.4 (0.8; 11.4)	2.5 (0.7; 12.2)	2.2 (0.8; 10.8)	0.803
ALT, UI/L	22.0 (17.0; 33.0)	24.0 (16.0; 33.0)	22.0 (17.0; 32.2)	0.915
AST, UI/L	22.0 (19.0; 26.0)	23.0 (19.0; 27.0)	22.0 (19.7; 32.2)	0.268
LDH, UI/L	189.0 (170.0; 218.0)	187.0 (171.0; 225.5)	193.5 (168.5; 216.5)	0.891
CRP g/dL	3.3 (1.0; 4.0)	3.9 (1.0; 4.0)	3.1 (1.0; 4.0)	0.875
Serum biomarkers, median (P25; p75)
CDCP1	2.5 (2.0; 2.9)	2.3 (2.0; 2.8)	2.8 (2.3; 3.0)	0.001
OPG	9.9 (9.7; 10.0)	9.8 (9.7; 10.0)	10.0 (0.8; 10.1)	0.034
IL6	2.0 (1.7; 2.5)	1.9 (1.6; 2.4)	2.3 (1.8; 2.7)	0.014
IL15RA	1.3 (1.1; 1.4)	1.2 (1.1; 1.4)	1.3 (1.1; 1.5)	0.011
IL18	8.6 (8.3; 8.9)	8.5 (8.2; 8.8)	8.6 (8.5; 9.2)	0.005
CX3CL1	4.0 (3.7; 4.2)	3.9 (3.7; 4.1)	3.1 (3.8; 4.4)	0.036
Sputum biomarkers, median (P25; p75)
MCP3	0.7 (0.4; 1.4)	0.7 (0.4; 1.2)	0.9 (0.5; 2.3)	0.039

Biomarkers are presented as median of the NPX values. Note: ACE2, angiotensin-converting enzyme 2; ALT, Alanine aminotransferase; AST, Aspartate aminotransferase; CDCP1, CUB domain-containing protein 1; CRP, C-reactive protein; CX3CL1, Fractalkine; IL6, Interleukin 6; IL15RA, Interleukin 15 receptor subunit alpha; IL18, Interleukin 18; LDH, Lactate dehydrogenase; MCP3, Monocyte chemotactic protein 3; OPG, Osteoprotegerin; WBC, White blood cell count.