Table 3.

Laboratory characteristics of children with COVID-19

Characteristics	Median (range)
Absolute lymphocyte count at start of infection (× 109 /L)	0.66 (0.002–7.50)
Absolute neutrophil count at start of infection (× 109 /L)	1.18 (0.01–17.50)
Nadir absolute lymphocyte count during infection (× 109 /L)	0.55 (0.0002–3.83)
Nadir absolute neutrophil count during infection (× 109 /L)	0.63 (0.0002–11.83)
Serum ferritin levels (ng/mL) (n = 17 patients)	2590 (136–63,340)
CRP levels (mg/dL) (n = 19 patients)	3.41 (0.03–31.7)
D-dimer levels (n = 23 patients)	540 (228–24,605)