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. 2022 Jun 9;10:921880. doi: 10.3389/fped.2022.921880

Table 3.

Laboratory tests performed on patients with COVID-19 infection.

Variable	n
PCR (mg/dL)^a	169	1 (0.2–4.2)
ESR (mm/hour)^a	24	37.5 (18.2–63.7)
Leukocyte count (mm³)^a	180	9,200 (6,400–12,500)
Absolute neutrophils (mm³)^a	180	5,038 (2,400–8,046)
Hemoglobin (g/dL)^a	181	12.6 (11.8–13.5)
Platelets (mm³)^a	180	302,000 (238,250–371,500)
D-dimer (ng/mL)^a	13	2,633 (1,284–11,732)
LDH (U/l)^a	17	299 (226–398)
Ferritin (ng/mL)^a	14	527 (169–1,091)
Fibrinogen (mg/dL)^b	14	617 (±263)

^amedian and interquartile range; ^bmean and standard deviation.