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Table 1 Results from regression analysis

From: Mapping the EQ-5D index by UPDRS and PDQ-8 in patients with Parkinson’s disease

 

EQ-5D German index

EQ-5D European index

 

M1

M2

M3

M4

M1

M2

M3

M4

Intercept

0.904154***

0.927487***

0.962811***

0.9298***

79.272395***

76.85026***

80.05367***

81.959757***

UPDRS II

    

−0.775300

* 1

   

UPDRS III

−0.000129*** 2

−0.000111*** 2

−0.000106*** 2

 

−0.008005*** 2

−0.01006*** 2

−0.01022*** 2

 

UPDRS IV

 

−0.013411** 1

   

−1.52015*** 1

  

UPDRS IVa

  

0.003055** 2

   

0.24170* 2

 

UPDRS IVb

  

−0.005198*** 2

   

−2.23550** 1

,

UPDRS IVc

  

−0.044820*** 2

   

−3.91892*** 2

 

PDQ1

   

−0.000043*** 2

   

−0.379520*** 1

PDQ2

   

−0.000023* 2

   

−0.002511*** 2

PDQ3

        

PDQ4

        

PDQ5

        

PDQ6

        

PDQ7

        

PDQ8

   

−0.000035*** 2

   

−0.003005*** 2

R 2

0.5377

0.5685

0.7117

0.6034

0.5607

0.5850

0.6840

0.6662

RMS

0.1743

0.1691

0.1394

0.1628

15.7759

15.3327

13.3798

13.7519

Link test

0.068

n.s.

0.053

n.s.

0.33

n.s.

0.053

n.s

0.772

n.s.

0.025

n.s.

0.999

n.s.

0.025

n.s.

  1. Statistics for the regression analysis including the model fit of models achieving a maximum R2 and minimum root mean square error (RMS);
  2. * represent the level of significance (n.s.: not significant for p ≥0.05, *: p <0.05, **: p <0.01, ***: p <0.001); the numbers indicate the degree of terms included in the model for maximum R2 (1linear terms, 2quadratic terms); PDQx indicates the respective of the eight items of the PDQ-8 questionnaire.
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Health and Quality of Life Outcomes

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