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

Table 2 Results of stepwise selection

	Full model			Parsimonious model
	β	S.E.	p-value	β	S.E.	p-value
Accreditation status (ref = medical center)	0.1279	0.0495	0.0098	0.1378	0.0461	0.0028
Ownership (ref = public)	0.0236	0.0506	0.6409
Surgeon´s gender (ref = male)	0.0376	0.1247	0.7630
Surgeon´s age	-0.0474	0.00686	<.0001	-0.0474	0.00688	<.0001
Patient´s age	0.0531	0.00482	<.0001	0.0529	0.00481	<.0001
Patient´s gender (ref = male)	0.1220	0.0484	0.0117
CCI (ref = 2+)	0.3561	0.0475	<.0001	0.3549	0.0473	<.0001
Number of vessels obstructed (ref = 2+)	-0.2322	0.0463	.0001	-0.2319	0.0463	<.0001

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