Plasma Aβ42/40 and PET amyloid associations among late‐middle‐aged African Americans: Preliminary results from the AA‐FAIM study

Alzheimer’s disease (AD) models of disease progression have been built largely on non‐Hispanic White samples. Availability of AD blood‐based biomarkers may improve screening for AD risk and facilitate greater diversity in research studies; little is known about these biomarkers within African Americans (AA). Here, we characterized associations between plasma Ab42/40 and Positron Emission Tomography (PET) amyloid measures in an AA sample.