Abstract
Data from the Einstein Aging Study (EAS) were used to prospectively evaluate the free recall score from the free and cued selective reminding test (FCSRT-FR) and logical memory I immediate recall (LM-IR) subtest of the Wechsler memory scale-revised for prediction of incident Alzheimer disease (AD) dementia among individuals from a community-based cohort with memory complaints. Analyses included 854 participants, age ≥70 years, who initially had no dementia, and had memory complaints. Clinic evaluations were completed annually and AD dementia was diagnosed using standard criteria (n = 86 cases; average follow-up 4.1 years). Time-dependent receiver operating characteristic analysis was used to evaluate the prognostic ability of FCSRT-FR and LM-IR for incident AD over various durations of follow-up. For identifying those with memory complaints who will develop incident AD dementia over 2-4 years, the FCSRT-FR had better operating characteristics than LM-IR. APOE ε4 status, age, and education did not affect cut points; however, positive predictive values were higher among APOE ε4-positive individuals. For follow-up intervals of 2-4 years, the FCSRT-FR is more predictive than the LM-IR for identifying individuals with memory complaints who will develop incident AD. APOE ε4 status improves positive predictive value, but does not affect the choice of optimal cuts.
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