RESULTS	By comparing endovascular treatment with endarterectomy after the 30-day post-treatment period , the 8-year incidence and hazard ratio ( HR ) at the end of follow-up for ipsilateral non-perioperative stroke was 11.3 % versus 8.6 % ( HR 1.22 , 95 % CI 0.59-2 .54 ) ; for ipsilateral non-perioperative stroke or TIA was 19.3 % versus 17.2 % ( 1.29 , 0.78-2 .14 ) ; and for any non-perioperative stroke was 21.1 % versus 15.4 % ( 1.66 , 0.99-2 .80 ) .\