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Table 2 Relationship between direct costs and GDP, adjusted model

From: Costs of multimorbidity: a systematic review and meta-analyses

Predictor

Estimate

Standard error

Intercept

−4.86*

1.26

Log10 GDP

1.91*

0.27

Random effects

Variance

 

Study

0.02029

 

Data source

0.02365

 

Residual

0.00684

 

AIC

−31.87

 

R-squared adjusted

0.94

 

N

41

 
  1. Legend: We ran a linear mixed model with various study characteristics as random effects to assess the relationship between direct costs of multimorbidity and country GDP. *p < 0.001