Figure 3. Kaplan-Meier survival graphs for 10-year risks of overall and post-90-day recurrent ischemic stroke (IS) in cryptogenic and noncryptogenic index events.

The overall 10-year risk and the post-90-day 10-year risk of recurrent IS after cryptogenic (A, B) and noncryptogenic (C, D) index events in patients with acute ischemic lesions on baseline brain diffusion-weighted imaging (DWI+) and in those without (DWI−).