CSF p-tau181/Abeta42

Plasma p-tau217 yields discordant Alzheimer results in 8.5% of adults

False-negative blood results occurred in 5.6% of participants compared with false positives in 2.8%, with mismatches tied to kidney function, BMI, and…False-negative blood results occurred in 5.6% of participants compared with false positives in 2.8%, with mismatches tied to kidney function, BMI, and clinical stage.