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Table 3 Results of multilevel analysis: mediation effect examination

From: Do low-income coronary artery bypass surgery patients have equal opportunity to access excellent quality of care and enjoy good outcome in Taiwan?

 

Model 1(y=mortality)

Model 2(y=patterns of QOC)

Model 3(y=mortality)

 

Odds ratio

95% C.I.

Odds ratio

95% C.I.

Odds ratio

95% C.I.

 

LCL

UCL

LCL

UCL

LCL

UCL

Fixed-effects

      

Hospital-level

         

Accreditation status (ref. = Medical center)

1.322

0.904

1.932

2.401***

1.530

3.767

1.410

0.971

2.048

Surgeon-level

         

Surgeon´s age

0.954***

0.933

0.976

1.005

0.981

1.029

0.954***

0.933

0.975

Patient level

         

Income(ref. = low income)

0.353***

0.193

0.644

2.291*

1.033

5.078

0.369**

0.202

0.673

Patterns of QOC (ref.=excellent)

      

2.623***

1.737

3.960

Age

1.055***

1.045

1.066

0.991**

0.985

0.998

1.054***

1.044

1.065

Gender (ref. = Male)

1.292**

1.058

1.579

0.848*

0.719

1.000

1.280*

1.047

1.565

Number of vessels obstructed (ref. = >2+ vessels)

2.029***

1.641

2.509

1.670***

1.425

1.957

2.100***

1.699

2.595

Comorbidity index (ref. = 2+)

0.637***

0.526

0.770

1.029

0.896

1.180

0.634***

0.524

0.767

Random effects

Variance

Std.err.

 

Variance

Std.err.

 

Variance

Std.err.

 

Intercept: surgeon (hospital)

0.6100

0.2796

 

1.1590

0.2978

 

0.5419

0.2619

 

Intercept: surgeon

0.0234

0.2602

 

0.1473

0.2226

 

0.02730

0.2428

 
  1. *p<0.05 **p<0.01 ***p<0.001.
  2. QOC: quality of care; C.I.: confidence interval; LCL: Lower confidence limit; UCL: Upper confidence limit.