MAPT and dementia: Among those without dementia, there was no difference between those with a CDR score of 0.5 (n = 57) and those with a CDR score of 0 (n = 259) in Aβ42 (697.4 vs 724.5 ng/L, p = 0.41), Aβ40 (6,052.7 vs 6,250.9 pg/mL, p = 0.31), Aβ42/Aβ40 ratio (0.86 vs 0.88, p = 0.53) t-tau (328.3 vs 332.0 ng/L, p = 0.83), and p-tau (49.1 vs 49.5 ng/L, p = 0.86) levels.