Table 2.

Clinical characteristics of 127 children or adolescence with COVID-19. Values are mean±SD (standard deviation) or medians (interquartile ranges) unless stated otherwise.

	Total	Mild	Moderate	Severe/Critical
White blood cells (4–10 $\times$ 109 cells per L)	6.61 (2.09)	6.61 (1.88)	6.77 (2.17)	5.33 (2.57)
Neutrophil (2–7 $\times$ 109 cells per L)	2.94 (1.98)	3.36 (2.58)	2.72 (1.25)	1.89 (1.80)
Lymphocytes (1–4 $\times$ 109 cells per L)	3.07 (1.52)	2.70 (0.96)	3.35 (1.82)	3.37 (1.81)
Eosinophil (0.05–0.5 $\times$ 109 cells per L)	0.24 (0.38)	0.15 (0.16)	0.03 (0.03)	0.13 (0.17)
Platelet (100–300 $\times$ 109 cells per L)	298.90 (95.87)	283.96 (74.42)	296.15 (96.12)	314.14 (28.47)
C-reactive protein  (<0.75 mg/L)	1.42 (1.97)	2.09 (2.75)	0.75 (0.01)	0.75 (0.01)
Procalcitonin (≤0.05 ng/ml)	0.07 (0.12)	0.07 (0.15)	0.06 (0.05)	0.26 (0.24)
Fibrinogen (2–4 g/L)	2.17 (0.64)	2.23 (0.65)	2.15 (0.65)	2.07 (0.28)
D-dimer (0–0.55 mg/L)	0.44 (1.12)	0.24 (0.31)	0.67 (1.63)	0.15 (0.04)
Alanine aminotransferase (21–27 IU/L)	29.74 (58.59)	24.96 (10.99)	47.29 (85.83)	19.57 (22.90)
Aspartate transferase (15–46 IU/L)	36.38 (61.71)	15.07 (8.43)	44.50 (81.46)	27.71 (6.63)
Creatinine (58–110umol/L)	37.38 (14.02)	41.68 (13.50)	33.30 (13.68)	37.5 (7.64)
Blood urea nitrogen (3.2–7.1 mmol/L)	4.20 (1.52)	4.41 (1.28)	3.98 (1.68)	4.75 (0.72)
Calcium (2.1–2.55 mmol/L)	2.47 (0.12)	2.46 (0.11)	2.48 (0.13)	2.45 (0.14)
Infiltration of lung
Pneumonia No.	68	0	63	5
non-pneumonia No.	59	57	0	2
No. of lobes affected, median[IQR]	1 [1–2]	0	2 [1–2]	1 [1–3.5]

Data are mean (standard deviation), unless otherwise indicate. COVID-19, coronavirus disease 2019.