MAPT and Alzheimer disease: Binary logistic regressions (Table 2) showed that higher levels of each plasma p-tau and tau form were associated with increased odds for having AD (ORs = 1.70 [p-tau202]—27.00 [p-tau217]), which were particularly high for p-tau217 (OR = 27.00, CI 95% (8.6–112.33)) and the p-tau217/tau212–221 ratio (OR = 11.03, CI 95% (4.93–30.42)).