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Table 1 Association between competition of care groups and health insurers, and price of DMPs based on linear regression analyses #

From: Market competition and price of disease management programmes: an observational study

  Univariate linear regression Multivariate linear regression$
  Effect (95% CI) Effect (95% CI) Effect (95% CI)§
Insurer market concentration (HHI) 0.004 (-0.008-0.017) 0.009 (-0.005-0.024) 0.009 (-0.005 - 0.024)
Number of care groups in region -4.78 (-8.41 - -1.15)* -4.68 (-8.36 - -1.00)*  
Care group market share$ 0.49 (-0.16 - 1.15)   0.37 (-0.31 - 1.05)
  1. #Analyses were adjusted for the percentage of persons with a low income (lowest 40% of the whole country) and the percentage of persons with a western and non-western nationality in a GGD region; $based on 63 care groups since no data were available on the number of GPs for 13 care groups; §Total variance explained (R2): 9% and 10%; *p < 0.05.