Kaplan–Meier estimates of cumulative probability of stroke for each time period
| 1 day (0.0333 months) | 1 month | 3 months | 6 months | 12 months | 24 months | |
| UCLA | 0.114 | 0.203 | 0.245 | 0.245 | 0.245 | 0.245 |
| WASID | 0.03 | 0.12 | 0.16 | 0.21 | 0.25 | NA |
| NIH Wingspan | 0.03 | 0.12 | 0.15 | 0.17 | 0.17 | NA |
Data from WASID (1) and the NIH Wingspan registry (2) were adapted from tables in those papers.
NIH, National Institutes of Health; WASID, Warfarin–Aspirin Symptomatic Intracranial Disease.