Abbreviations: Aβ- = low amyloid load according to median visual score (0,1) ; Aβ+ = high amyloid load according to median visual score (2,3,4); 3MS = modified Mini-Mental State Exam; MMSE = Mini-Mental State Exam; CVLT = California Verbal Learning Test; BNT = Boston Naming Test.
Trajectories are for people with baseline cognitive diagnosis of ‘normal’ (closed circles) and ‘cognitive impairment no dementia’ (open squares). Slopes indicate the average yearly rate of change in cognitive tests (solid thick lines).