Comparisonsvn-2019 of 1-year stroke and death rates with medical therapy and stenting 21 days or longer after qualifying event
| Medical therapy | Publication | Patients (n) | One-year stroke and death rate (%) |
| WASID | New England Journal of Medicine, 20057 | 569 | 18 |
| SAMMPRIS | New England Journal of Medicine, 20118 | 227 | 12.2 |
| COSS | The Journal of the American Medical Association, 20119 | 98 | 16 |
| Total/mean event rate | 894 | 15.4 | |
| Stenting | |||
| Jiang | Stroke, 201130 | 100 | 7.3 |
| Li | PloS One, 201531 | 429 | 9.5 |
| Wang | Neuroradiology, 201632 | 196 | 9.6 |
| Zhao | Journal of Stroke and Cerebrovascular Diseases, 201633 | 278 | 5.8 |
| Ma | Stroke and Vascular Neurology, 201834 | 141 | 7.9 |
| Total/mean event rate | 1134 | 8.0 |
COSS, Carotid Occlusion Surgery Study; SAMMPRIS, Stenting vs Aggressive Medical Therapy for Intracranial Artery Stenosis; WASID, Warfarin vs Aspirin for Symptomatic Intracranial Disease.