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Table 2 Prediction models for inpatients using dimensions, squared terms and interaction terms

From: Mapping SF-36 onto the EQ-5D index: how reliable is the relationship?

 

Random effects GLS

Tobit

CLAD

 

(1)

(2)

(3)

(4)

(5)

Dimensions

     

Physical functioning (PF)

0.332*

0.548*

0.559*

0.559*

0.663*

Role physical (RP)

-0.060*

-0.021

-0.146*

-0.146*

-0.475*

Bodily pain (BP)

0.303*

0.747*

0.715*

0.713*

0.733*

General health (GH)

0.169*

0.322*

0.407*

0.407*

0.325*

Vitality (VIT)

-0.039*

0.007

0.017

0.017

-0.142*

Social functioning (SF)

0.115*

0.256*

0.293*

0.293*

0.525*

Role-emotional (RE)

0.010*

0.014

0.067*

0.067*

-0.024

Mental health (MH)

0.237*

0.577*

0.483*

0.483*

0.527*

Dimensions squared

     

Physical functioning (PF)

 

-0.250*

-0.227*

-0.227*

-0.082*

Role physical (RP)

 

0.043*

0.001

0.001

-0.056*

Bodily pain (BP)

 

-0.378*

-0.330*

-0.329*

-0.171*

General health (GH)

 

-0.137*

0.032

0.031

0.167*

Vitality (VIT)

 

-0.014

-0.012

-0.012

0.063

Social functioning (SF)

 

-0.179*

-0.163*

-0.163*

-0.182*

Role-emotional (RE)

 

0.017

0.034

0.034

0.058*

Mental health (MH)

 

-0.321*

-0.242*

-0.242*

-0.152*

Interaction terms

     

PF × RP

  

0.022

0.022

0.185*

PF × BP

  

-0.032

-0.031

-0.192*

PF × GH

  

0.073

0.073

-0.009

PF × VIT

  

-0.132*

-0.132*

-0.078

PF × SF

  

-0.023

-0.023

-0.246*

PF × RE

  

0.047*

0.047*

0.045*

PF × MH

  

-0.014

-0.013

-0.054

RP × BP

  

0.019

0.019

0.097*

RP × GH

  

0.068*

0.068*

0.215*

RP × VIT

  

0.050

0.049

0.031

RP × SF

  

0.067*

0.067*

0.108*

RP × RE

  

-0.012

-0.012

0.013

RP × MH

  

0.022

0.022

0.154*

BP × GH

  

-0.217*

-0.217*

-0.208*

BP × VIT

  

-0.002

-0.002

0.120*

BP × SF

  

0.055

0.055

-0.070*

BP × RE

  

-0.038

-0.038

0.039*

BP × MH

  

0.131*

0.131*

-0.075

GH × VIT

  

-0.066

-0.066

-0.200*

GH × SF

  

-0.157*

-0.158*

-0.144*

GH × RE

  

-0.033

-0.033

-0.019

GH × MH

  

-0.084

-0.084

-0.114*

VIT × SF

  

0.143*

0.143*

0.174*

VIT × RE

  

-0.020

-0.019

-0.021

VIT × MH

  

0.023

0.022

0.095

SF × RE

  

-0.023

-0.023

-0.024

SF × MH

  

-0.065

-0.065

-0.133*

RE × MH

  

-0.048

-0.048

-0.035

Constant

0.0071

-0.2493*

-0.256*

-0.256*

-0.289*

Within R-squared

0.18

0.21

0.22

-

-

Between R-squared

0.67

0.70

0.71

-

-

Overall R-squared

0.67

0.70

0.71

-

-

Root MSE

0.15

0.15

0.15

-

-

Rho

0.28

0.24

0.24

  

Wald Chi-squared

48380.12

56129.39

57195.96

  
  1. Note: * significant at 1%