In both groups , continued thienopyridine reduced MI ( 2.2 % vs. 5.2 % , p < 0.001 for MI ; 2.1 % vs. 3.5 % , p < 0.001 for no MI ; interaction p = 0.15 ) but increased bleeding ( 1.9 % vs. 0.8 % , p = 0.005 for MI ; 2.6 % vs. 1.7 % , p = 0.007 for no MI ; interaction p = 0.21 ) .