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Table 4 Summary results of multilevel analysis: mediation effect examination (random sampling 1:4 case-control)

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       
Income (ref. = low income) 0.392** 0.176 0.876 2.562* 1.099 5.973 0.420* 0.190 0.933
Patterns of QOC (ref. = excellent)        6.277** 1.147 34.354
  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.
  3. Adjusted for surgeon´s age, cci, and Number of vessels obstructed.