Table 4.

Risk of repeat revascularization in anatomic subgroups

Variables	No. of Patients	No. of Events	Event Rate (K-M estimate)	Hazard Ratio (95% CI)	P-value	P-value for interaction
3 Diseased Vessels						0.01*
With or without proximal LAD artery
EES	773	202	32.8	3.30(2.43,4.49)	<0.0001
CABG	773	79	13.6	Reference
With proximal LAD artery						0.31†
EES	278	65	30.2	2.67(1.62,4.40)	0.0001
CABG	278	33	16.4	Reference
Without proximal LAD artery
EES	495	137	34.2	3.72(2.52,5.49)	<0.0001
CABG	495	46	12.1	Reference
2 Diseased Vessels
With or without proximal LAD artery
EES	1008	213	28.0	1.92(1.49,2.48)	<0.0001
CABG	1008	115	14.8	Reference
With proximal LAD artery				1.44(0.86,2.40)	0.16	0.21†
EES	250	50	29.7
CABG	250	29	149	Reference
Without proximal LAD artery
EES	758	163	26.9	2.11(1.57,2.84)	<0.0001
CABG	758	86	14.9	Reference
Complete Revascularization						0.005‡
EES	748	120	23.3	1.56(1.12,2.16)	0.01
CABG	748	76	13.0	Reference
Incomplete Revascularizationϯ
EES	3300	769	29.8	2.62(2.26,3.03)	<0.0001
CABG	3300	345	13.6	Reference

^*Test for interaction for the number of diseased vessels (3 diseased vessels vs. 2 diseased vessels);

^†Test for interaction based on the proximal LAD disease status (with vs. without proximal LAD).

^‡Test for interaction based on completeness of revascularization (complete vs. incomplete) in the PCI cohort.

^ϯBased on incomplete revascularization in the PCI group. CABG = coronary artery bypass graft surgery; EES = everolimus eluting stent; LAD = left anterior descending artery.