We report a large population study of autopsy-confirmed SUDEP.
The research team had direct access to all autopsies for the population.
SUDEP deaths were commonly overnight, unwitnessed terminal events.
SUDEP deaths commonly had evidence of a proximate seizure.
More than half of SUDEP deaths had sub-therapeutic anti-convulsant levels.
SUDEP occurred in children, but no male predominance was seen in those <18 years.