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Table 2 The global effects of treatment rates on baseline health, and health gain measured by EQ-5D

From: Associations between utilization rates and patients’ health: a study of spine surgery and patient-reported outcomes (EQ-5D and ODI)

 

Baseline health

Health Gain

Linear

Best non-linear

Linear

Best non-linear

Intercept

0.353***

0.322***

0.440***

0.495***

Rates

0.002***

 

−0.004***

 

\( \sqrt{Rates} \)

 

−0.17***

 

−0.031***

R2Marg

    

Observations

15,810

12,232

  1. *p < 0.1;**p < 0.05;***p < 0.01
  2. Adjusted for: treated within or outside own hospital region; age; gender; smoker, BMI; education; labour market participation; previous surgery; emergency care; self-reported measure on duration of symptoms; and time trend. Significance based on robust standard errors