Implications of Alternative Methods of Identifying Populations with Dementia Issue Brief


This study sought to identify the amount of overlap among three methods of identifying people with dementia, and to obtain national estimates of the number of people with dementia. It also explored key characteristics of people identified as having dementia by the various methods, to understand potential causes and implications of differences for policy and practice.

This brief was prepared by RTI International under contract #HHSP23320160001I with the U.S. Department of Health and Human Services, Office of the Assistant Secretary for Planning and Evaluation, Office of Disability, Aging and Long-Term Care Policy. For additional information about this subject, visit the DALTCP home page at or contact ASPE Project Officers at HHS/ASPE/DALTCP, Room 424E, H.H. Humphrey Building, 200 Independence Avenue, S.W., Washington, D.C. 20201,

DISCLAIMER: The opinions and views expressed in this report are those of the authors. They do not reflect the views of the Department of Health and Human Services, the contractor or any other funding organization. This report was completed and submitted on September 2019.


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