Racial and ethnic differences in epilepsy classification among probands in the Epilepsy Phenome/Genome Project (EPGP)

Highlights • Friedman; racial and ethnic differences in epilepsy classification among probands in the Epilepsy Genome/Phenome Project (EPGP). • We examined racial/ethnic groups in subjects with non-acquired epilepsy enriched for a genetic cause. • The majority (77.2%) of subjects were exclusively Caucasian/white. • Generalized epilepsies were more common among Caucasians than among those with African ancestry. • Subjects with African ancestry were more likely to have unclassifiable syndromes. • This was most often due to incomplete or conflicting diagnostic tests.