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

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

	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.
	Odds ratio	LCL	UCL	Odds ratio	LCL	UCL	Odds ratio	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

*p<0.05 **p<0.01 ***p<0.001.
QOC: quality of care; C.I.: confidence interval; LCL: Lower confidence limit; UCL: Upper confidence limit.
Adjusted for surgeon´s age, cci, and Number of vessels obstructed.

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