The SB in-segment diameter stenosis among the angiographic cohort was lower in the bifurcation stent group compared with the provisional group ( 31.6 % vs. 38.6 % , p = 0.002 for superiority ) , with no difference in binary restenosis rates ( diameter stenosis50 % ) at 9 months follow-up ( 22.6 % vs. 26.8 % , p = 0.44 ) .