Stroke was significantly increased in the CABG group ( PCI 1.5 % versus CABG 4.3 % ; hazard ratio , 0.33 [ 95 % confidence interval , 0.12-0 .92 ] ; P = 0.03 ) and repeat revascularization in the PCI arm ( 26.7 % versus 15.5 % ; hazard ratio , 1.82 [ 95 % confidence interval , 1.28-2 .57 ] ; P < 0.01 ) .