We evaluated the association between 4 p-tau biomarkers in the CSF (p-tau181, p-tau217, p-tau231, p-tau235) and 3 in plasma (p-tau181, p-tau217, p-tau231) with amyloid-β and tau aggregation assessed with PET in the Translational Biomarkers in Aging and Dementia (TRIAD) study cohort. This evidence concerns the gene MAPT and dementia.