GAD2 and epilepsy syndrome: Currently, there is limited literature regarding race factors in SPSD, though there was a prior study that evaluated 22 Black American and 18 white American individuals with anti-GAD65 neuro-immunity (mainly epilepsy syndromes) that showed that the age of disease onset was lower in Black Americans and the incidence of refractory seizures was higher in Black Americans, hinting that possibly the disease was more aggressive in Black Americans compared to white Americans in their cohort [32].