PMC

a. Multivariate mixed effects model with adjusted mean 3MS score over years of follow-up by education level and β-amyloid 42/40 high and low tertile. Models are adjusted for age, race, diabetes, smoking and APOE e4; the interaction term is between education level and β-amyloid 42/40 tertile.
b. Multivariate mixed effects model with adjusted mean 3MS score over years of follow-up by literacy level and β-amyloid 42/40 high and low tertile. Models are adjusted for age, race, diabetes, smoking and APOE e4; the interaction term is between literacy level and β-amyloid 42/40 tertile.