Fig. 3: Amyloid positivity and PET load by community.

Amyloid positivity, showing both the number of individuals who are amyloid positive in each community as well as PET amyloid load in amyloid-positive individuals. Boxplot centerline: median; box limits: upper and lower quartiles; whiskers: 1.5× interquartile range (IQR); outliers: beyond 1.5 the IQR.