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. 2020 Apr 10;77(6):1–9. doi: 10.1001/jamaneurol.2020.1127

Table 2. Laboratory Findings of Patients With COVID-19.

Laboratory finding Median (range) P valuea
Total (N = 214) Severe (n = 88) Nonsevere (n = 126)
Count, ×109/L
White blood cell 4.9 (0.1-20.4) 5.4 (0.1-20.4) 4.5 (1.8-14.0) .008
Neutrophil 3.0 (0.0-18.7) 3.8 (0.0-18.7) 2.6 (0.7-11.8) <.001
Lymphocyte 1.1 (0.1-2.6) 0.9 (0.1-2.6) 1.3 (0.4-2.6) <.001
Platelet 209.0 (18.0-583.0) 204.5 (18.0-576.0) 219.0 (42.0-583.0) .25
C-reactive protein, mg/L 12.2 (0.1-212.0) 37.1 (0.1-212.0) 9.4 (0.4-126.0) <.001
D-dimer, mg/L 0.5 (0.1-20.0) 0.9 (0.1-20.0) 0.4 (0.2-8.7) <.001
Creatine kinase, U/L 64.0 (8.8-12216.0) 83.0 (8.8-12216.0) 59.0 (19.0-1260.0) .004
Lactate dehydrogenase, U/L 241.5 (2.2-908.0) 302.0 (2.2-880.0) 215.0 (2.5-908.0) <.001
Aminotransferase, U/L
Alanine 26.0 (5.0-1933.0) 32.5 (5.0-1933.0) 23.0 (6.0-261.0) .04
Aspartate 26.0 (8.0-8191.0) 34.0 (8.0-8191.0) 23.0 (9.0-244.0) <.001
Blood urea nitrogen, mmol/L 4.1 (1.5-48.1) 4.6 (1.5-48.1) 3.8 (1.6-13.7) <.001
Creatinine, μmol/L 68.2 (35.9-9435.0) 71.6 (35.9-9435.0) 65.6 (39.4-229.1) .03

Abbreviation: COVID-19, coronavirus disease 2019.

SI conversion factor: To convert aminotransferase levels to microkatals per liter, multiply by 0.0167; creatine kinase to microkatals per liter, multiply by 0.0167; lactate dehydrogenase to microkatals per liter, multiply by 0.0167.

a

P values indicate differences between patients with severe and nonsevere infection, and P less than .05 was considered statistically significant.