Figure 2. Progression to secondary outcome, stratified by treatment group, during 5 years of prospective follow-up.
Kaplan-Meier estimate of progression to secondary outcome (symptomatic intracranial hemorrhage or new focal neurologic deficit [FND] definitely attributable to a cerebral cavernous malformation [CCM], possibly attributable to a CCM, or attributable to CCM treatment), stratified by treatment group (red line = CCM excision, black line = conservative management), during 5 years of prospective follow-up.