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Table 4 Comparison of DDR/CFR at May 2020-Nov 2020 and Nov 2020-May 2021

From: The association between different predictive biomarkers and mortality of COVID-19

Variable

Time

Mean

Standard deviation

Mean of difference with 95% CI

Percentage of change (%)*

Statistics t (89)

P value**

DDR

May 2020-Nov 2020

8.37

10.23

āˆ’ā€‰2.37 (āˆ’ā€‰3.95, āˆ’ā€‰0.79)

28.32

āˆ’ā€‰2.98

0.004

Nov 2020-May 2021

10.74

10.99

CFR

May 2020-Nov 2020

2.08

1.35

āˆ’ā€‰0.16 (āˆ’ā€‰0.73, 0.40)

7.69

āˆ’ā€‰0.58

0.56

Nov 2020-May 2021

2.24

2.75

  1. **: Paired samples t-test
  2. :** ((Mean of after-Mean of before)/Mean of before)ā€‰Ć—ā€‰100