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Table 4 Mixed effects model results showing the relationship between SOFA score, Barthel index at day 180, and COVID-19

From: COVID-19 does not influence functional status after ARDS therapy

 

Beta (β)

95% CI

P value

 

Intercept

8.65

  

AIC: 2875.2

Time

− 0.51

− 0.67; − 0.34

< 0.001

BIC 2892.8

Barthel high disability* (day 180)

4.61

2.25; 6.98

< 0.001

 

COVID yes

0.51

− 1.52; 2.54

0.62

 

Interaction Barthel high disability*: Time

0.54

0.32; 0.76

< 0.001

 

Interaction COVID: Barthel high disability*

− 2.88

− 5.57; − 0.18

0.037

 
  1. To reduce collinearity, the variables COVID yes and Barthel index were labeled as follows: not: − 0.5 and yes: 0.5 and time was centered
  2. *High disability: Barthel index 0–60