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Table 4 Descriptive statistics and correlations for the subscales of the MFI-20

From: Mental health outcomes following COVID-19 infection: impacts of post-COVID impairments and fatigue on depression, anxiety, and insomnia — a web survey in Sweden

 

α

Mean

SD

1

2

3

4

5

1.General fatigue

0.77

17.2

3.43

-

0.76*

0.70*

0.41*

0.49*

2.Physical fatigue

0.78

16.65

3.59

 

-

0.75*

0.40*

0.48*

3.Reduced activity

0.75

16.05

3.67

  

-

0.46*

0.60*

4.Reduced motivation

0.81

12.51

4.17

   

-

0.50*

5.Mental fatigue

0.77

14.44

3.91

    

-

  1. α = Cronbach's alpha
  2. * p < 0.01