A Cross‐sectional HABS‐HD study of Plasma Biomarkers of Cognitive Decline across Diagnoses in a Diverse Community Cohort

Due to their low cost, less invasive nature and ready availability, plasma biomarkers of Alzheimer’s disease have been proposed as one time screening tools for clinical trials and research. The impact of ethnoracial factors on these biomarkers has received little attention. The current study investigated the levels of Aβ40, Aβ42, total tau and NfL across diagnoses for each of the three major ethnoracial groups in the US in a community based cohort of older adults.