At @ year , paclitaxel-eluting stents did not meet the criterion for noninferiority to everolimus-eluting stents with respect to the primary end point ( rate of target-vessel failure , @ % vs. @ % ; risk difference , @ percentage points -LSB- @ % confidence interval , @ to @ -RSB- ; relative risk , @ -LSB- @ % confidence interval , @ to @ -RSB- ; P = @ for noninferiority ) .