Table 2.

SARS‐CoV‐2 N‐antigenemia and plasma level COVID‐19 severity biomarkers

Qualitative result		No. of paired specimens	Parameter; median (range)		p value
SARS‐CoV‐2 N‐antigenemia	Pos	14	IL‐6 in pg/ml	105.8 (4–3548)	0.69
	Neg	35		148.6 (4.7–3437)
	Pos	34	Ferritin in ng/ml	971.5 (147–6440)	0.03
	Neg	208		599 (42–5847)
	Pos	41	D‐D in ng/ml	1350 (320–18,870)	0.03
	Neg	269		1760 (270–60,000)
	Pos	43	LDH in UI/l	748 (214–1720)	0.002
	Neg	274		632.5 (58–2132)
	Pos	42	CRP in mg/l	61.55 (1–459)	0.01
	Neg	293		29.9 (1–746)
	Pos	27	Lymphocytes in cell/µl	0.83 (0.02–1.65)	0.001
	Neg	208		1.12 (0.17–3.73)

Abbreviations: CRP, C‐reactive protein; D‐D, Dimer‐D; IL‐6, interleukin‐6; LDH, lactate dehydrogenase.