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Table 2 Coefficients of determination (R2) for the case-mix based models to predict the health cost per patient

From: Predictive risk modelling in the Spanish population: a cross-sectional study

  

Demographic variables only

ACG-PM

CRG

DCG-HCC

Out of the box

Variables:

    
 

A&S + dx + rx + cost percentiles (age < 65)

 

0,167

  
 

A&S + dx + rx + cost percentiles (age 65+)

 

0,164

  
 

A&S + dx

  

0,135

 
 

A&S + dx + cost

   

0,181

 

A&S + dx + rx + cost

   

0,208

Recalibration

Variables

    
 

Age and Sex (A&S):

0,071

   
 

A&S + Only Dx

 

0,182

0,181

0,213

 

A&S + Only Rx

 

0,165

-

0,178

 

A&S + Dx + Rx

 

0,211

-

0,236

 

A&S + Dx + Rx + cost percentile

 

0,231

0.218*

0,246

 

A&S + Dx + Rx + cost

 

0,260

0.254*

0,269

 

A&S + Dx + Rx + cost + DI

 

0,260

0.254*

0,269

  1. *The CRG models do not include prescriptions.
  2. Age groups: 14–17; 18–34; 35–44; 45–54; 55–64; 65–69; 70–74; 75–79; 80–84; 85 + .
  3. Cost groups in percentiles: 0–1; 2–10; 11–25; 26–50; 51–75; 76–90; 91–93; 94–95; 96–97; 98 + .
  4. Dx diagnoses, Rx prescriptions, DI Deprivation index.