Aspirin v warfarin for symptomatic intracranial arterial stenosis at mean 1.8 years*
| Outcomes | Aspirin | Warfarin | RRI (CI) | NNH |
|---|---|---|---|---|
| Primary composite endpoint† | 22.1% | 21.8% | 4% (−25 to 40) | Not significant |
| RRR (CI) | NNT (CI) | |||
|---|---|---|---|---|
| *MI = myocardial infarction. Other abbreviations defined in glossary; NNT and CI calculated from data in article. | ||||
| †Primary composite outcome = ischaemic stroke, brain haemorrhage, and death from vascular causes other than stroke. | ||||
| All cause death | 4.3% | 9.7% | 53% (10 to 76) | 20 (14 to 108) |
| Vascular death | 3.2% | 5.9% | 43% (−25 to 74) | Not significant |
| Non-vascular death | 1.1% | 3.8% | 70% (−7 to 92) | Not significant |
| Major haemorrhage | 3.2% | 8.3% | 60% (15 to 81) | 18 (13 to 67) |
| MI or sudden death | 2.9% | 7.3% | 59% (9 to 81) | 24 (17 to 158) |