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Table 4 White blood cell of COVID-19 patients with different severity

From: Early predictors and screening tool developing for severe patients with COVID-19

  Fatal cases
(n = 37)
Severe cases
(n = 123)
Common cases (n = 653) χ2 P
White blood cell count, × 109 per L 5.5
(4.0,7.2)
4.7
(3.4,6.2)
4.6
(3.7,5.8)
3.7 0.154
 Subnormal (< 4) 23.1% 36.1% 35.1% 8.0 0.094
 Normal (4–10) 69.2% 55.7% 61.9%   
 Above normal (> 10) 7.7% 8.2% 3.1%   
Lymphocyte count, × 109 per L 0.8
(0.6,1.1)
0.9
(0.6,1.3)
1.1
(0.9,1.5)
27.3  < 0.001
 Significant decreased (< 0.8) 43.5% 49.5% 21.1% 43.9  < 0.001
 Subnormal (0.8–1.09) 34.8% 18.9% 25.0%   
 Normal (1.1–3.2) 17.4% 28.4% 52.2%   
 Above normal (> 3.2) 4.3% 3.2% 1.7%   
Lymphocyte constituent ratio (%) 18.7
(11.6,23.4)
21.3
(11.8,28.6)
26.0
(18.6,32.7)
25.3  < 0.001
 Subnormal (< 20%) 59.3% 46.4% 29.9% 19.8 0.001
 Normal (20%-40%) 37.0% 49.5% 59.7%   
 Above normal (> 40%) 3.7% 4.1% 10.4%   
Neutrophil granulocyte constituent ratio (%) 75.4
(60.3,81.3)
67.3
(56.7,76.8)
62.1
(54.3,70.5)
19.9  < 0.001
 Subnormal (< 20%) 3.7% 11.3% 6.8% 41.6  < 0.001
 Normal (40%-75%) 44.4% 60.8% 80.4%   
 Above normal (> 75%) 51.9% 27.8% 12.8%   
Neutrophil-to-Lymphocyte Ratio (NLR) 4.2
(2.6, 7.4)
3.1
(2.0, 6.2)
2.4
(1.7,3.8)
22.0  < 0.001
Increased NLR (> 4.7) 44.4% 34.7% 15.0% 30.7  < 0.001