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Table 5 Comparisons of interleukin-6 and cfDNA levels according to severity and between survivors and non-survivors

From: IL-6 and cfDNA monitoring throughout COVID-19 hospitalization are accurate markers of its outcomes

 

Severe and Critical

Moderate

p

CCDC scale

IL-6 (pg/mL)

32.44 [5.84; 104.03]

9.00 [2.76; 33.84]

< 0.001

cfDNA (ng/mL)

9.44 [6.15; 20.19]

6.21 [3.46; 10.44]

< 0.001

WHO OS

IL-6 (pg/mL)

32.44 [5.69; 99.94]

9.00 [2.90; 33.14]

< 0.001

cfDNA (ng/mL)

9.08 [5.54; 19.38]

6.88 [3.61; 10.73]

0.001

 

Critical

Moderate and Severe

p

CCDC scale

IL-6 (pg/mL)

59.48 [21.37; 175.20]

10.06 [3.10; 34.21]

< 0.001

cfDNA (ng/mL)

14.11 [7.13; 22.67]

7.01 [4.01; 10.93]

< 0.001

 

Survivors

Non-survivors

p

Total samples (n = 201)

IL-6 (pg/mL)

11.14 [3.49; 39.23]

n = 158

52.49 [21.37; 152.90]

n = 43

< 0.001

cfDNA (ng/mL)

7.06 [4.12; 11.40]

n = 158

14.98 [7.42; 25.74]

n = 43

< 0.001

1st sample (n = 93)

IL-6 (pg/mL)

25.91 [5.77; 51.55]

n = 74

66.91 [38.38; 162.70]

n = 19

0.001

cfDNA (ng/mL)

6.87 [4.01; 10.81]

n = 74

14.98 [7.73; 22.51]

n = 19

0.002

  1. IL-6 interleukin-6, cfDNA cell-free DNA, CCDC Chinese Center for Disease Control and Prevention classification, WHO OS World Health Organization Ordinal Scale