Wingspan Stenting for Severe Symptomatic Intracranial Atherosclerotic Stenosis in 433 Patients Treated at a Single Medical Center
Fig 2
Kaplan-Meier estimation of the cumulative stroke rate.
The analysis ended at 60 months (x-axis) because only two cases had a follow-up duration exceeding 66 months. The one-year cumulative stroke rate (including all cases of stroke or death within the 30-day perioperative period and all cases of ipsilateral stroke after that period) was 9.5% (95% CI: 6.6–12.4%) and the two-year cumulative stroke rate was 11.5% (95% CI: 8.2%–14.8%).