Clinical Factors Associated With Discordant Plasma P-Tau217 and Established Alzheimer Disease Biomarkers.
BACKGROUND AND OBJECTIVES Plasma phosphorylated tau (p-tau) 217 is increasingly used for Alzheimer disease (AD) diagnosis and treatment decisions but may be discordant with established AD biomarkers. False-positive (FP) plasma results may lead to overtreatment and false-negative (FN) results to missed or delayed diseas...