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Int Psychogeriatr. 1994 Spring;6(1):95-104.

Estimated prevalence of age-associated memory impairment derived from standardized tests of memory function.

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  • 1Memory Assessment Clinics, Inc., Sarasota, Florida.


Recent research on the prevalence of age-associated memory impairment (AAMI) has reflected considerable variability, with estimates ranging from 35% to 98%. This variability is attributed to (a) failure to employ the complete diagnostic criteria for AAMI and (b) failure to consider age as a variable in estimating prevalence. Analysis of published normative data on both standard clinical memory tests and computer-simulated everyday memory tests shows a clear increase in the percentage of persons meeting the AAMI memory performance criterion as a function of age. These data are offered as an upper-bound estimate of the prevalence of AAMI, by age decade.

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