Table 1.

Median and mean circulating calprotectin concentration. Serum calprotectin was detected on negative RT-PCR controls and positive RT-PCR patients; plasma calprotectin was detected on healthy controls, negative RT-PCR patients and positive RT-PCR patients

	Patients’ cohort	Mean [CLP]	Std. deviation	Median [CLP] (range)
Serum	Negative RT-PCR controls (N = 69)	176.9 ng/mL	± 110.7 ng/mL	143.9 ng/mL (13.91–508.4)
	Positive RT-PCR patients (N = 71)	439.9 ng/mL	± 504.0 ng/mL	292.7 ng/mL (19.13–3642)
Plasma	Negative controls (N = 71)	45.36 ng/mL	± 31.13 ng/mL	32.87 ng/mL (14.00–152.20)
	Negative RT-PCR patients (N = 59)	177.2 ng/mL	± 201.5 ng/mL	104.8 ng/mL (32.17–1022)
	Positive RT-PCR patients (N = 65)	352.3 ng/mL	± 371.6 ng/mL	222.7 ng/mL (48.35–1621)