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Table 2 Correlations between sleep disturbance and psychopathological and Neurological variant and severity of the disease

From: Assessment of sleep disturbance in patients with Wilson’s disease

  

1

2

3

4

5

6

7

1. UWDRS

r

1.000

      
 

P

-

      

2. NV

r

0.758

1.000

     
 

P

< 0.001

-

     

3. HAMA

r

0.407

0.336

1.000

    
 

P

0.008

0.030

-

    

4. HAMD

r

0.120

0.309

0.488

1.000

   
 

P

0.450

0.046

0.001

-

   

5. PSQI

r

0.327

0.354

0.117

0.338

1.000

  
 

P

0.035

0.021

0.462

0.029

-

  

6. ESS

r

-0.185

-0.037

0.000

0.320

 

1.000

 
 

P

0.241

0.815

0.998

0.039

 

-

 

7. PDSS

r

-0.135

-0.236

-0.099

-0.360

  

1.000

 

P

0.395

0.132

0.535

0.019

  

-

  1. Abbreviations: Neurological variant (NV); Unified Wilson’s disease rating scale (UWDRS); Parkinson’s disease Sleep Scale (PDSS); Pittsburgh sleep quality index (PSQI); Epworth Sleepiness Scale (ESS); Hamilton Anxiety Scale (HAMA); Hamilton Depression Scale (HAMD)