Fig. 3

Cumulative risk of unprovoked seizure relapse – reverse Kaplan–Meier plots. A cumulative risk of unprovoked seizure relapse within 12 months of acute symptomatic first seizure. Purple, structural etiology with 95%CI; green, non-structural etiology. Uncorrected log-rank test, p = 0.22. Dashed horizontal line, a cumulative risk of ≤ 25% was initially hypothesized. B cumulative risk of unprovoked seizure relapse depending on the underlying structural pathology. Double line, combined infectious and structural pathology (e.g., cerebral abscess or meningoencephalitis with MR-visible affection of brain tissue; n = 14); dotted line, cerebral venous thrombosis and/or intracerebral hemorrhage (n = 37); dashed line, ischemic stroke (n = 37). Uncorrected log-rank test, p = 0.097