The figure shows the modeled probability of poor outcome (mRS 5–6) with increasing peak burden (maximum EA burden captured within any 12-hour window). This dose-response plot is obtained from the multivariable model that included the final 9 covariates: Age, initial GCS, worst GCS in the first 24 hours, APACHE II score, history of epilepsy, seizure on presentation, primary diagnosis of HIE, primary diagnosis of acute seizure/SE, peak burden. The shaded area represents the 95% confidence intervals of the model output. Increasing the peak EA burden from 0 to 100% increases the probability of a poor outcome by approximately 35% across all strata. The median value of other covariates is used to build the curve.
ABI: acute brain injury; GCS: Glasgow Coma Scale score; EA: epileptiform activity; HIE: hypoxic ischemic encephalopathy; SZ/SE: acute seizure/status epilepticus