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Table 8 Results of the Cobb–Douglas (CD) and Flexible AM ​​Internal Medicine models

From: Using flexible regression models for calculating hospital’s production functions

Model

Effects

Coefficients

df

P-value

R2(×100%)

AIC

CD

Beds

0.831

1.00

< 0.001

  

FTEs

0.056

1.00

0.784

  

Beds X FTEs

0.016

1.00

0.715

95.80

−15.939

Year

0.012

1.00

0.530

  

AM

s (Beds)

1.00

< 0.001

  

s (FTEs)

1.00

0.262

  

s (Beds,FTEs)

12.16.00

< 0.001

97.90

−13.113

Year

0.028

1.00

0.091

  
  1. AIC Akaike Information Criterion, df degrees of freedom, s() smoother using thin plate splines