Prevalence of Dementia in the United States: The Aging, Demographics, and Memory StudyPlassman B.L.a · Langa K.M.c, d, e · Fisher G.G.d · Heeringa S.G.d · Weir D.R.d · Ofstedal M.B.d · Burke J.R.b · Hurd M.D.f · Potter G.G.a · Rodgers W.L.d · Steffens D.C.a · Willis R.J.d · Wallace R.B.g
Departments of aPsychiatry and Behavioral Sciences, and bMedicine (Neurology), Duke University Medical Center, Durham, N.C., cDivision of General Medicine, Department of Medicine, and dInstitute for Social Research, University of Michigan, and eVeterans Affairs Center for Practice Management and Outcomes Research, Ann Arbor, Mich., fRAND, Santa Monica, Calif., and gColleges of Public Health and Medicine, University of Iowa, Iowa City, Iowa, USA
Brenda Plassman, PhD
905 W. Main Street, Ste 25-D, Box 41
Duke University Medical Center
Durham, NC 27701 (USA)
Tel. +1 919 682 6722, Fax +1 919 687 0424, E-Mail email@example.com
Do you have an account?
Aim: To estimate the prevalence of Alzheimer’s disease (AD) and other dementias in the USA using a nationally representative sample. Methods: The Aging, Demographics, and Memory Study sample was composed of 856 individuals aged 71 years and older from the nationally representative Health and Retirement Study (HRS) who were evaluated for dementia using a comprehensive in-home assessment. An expert consensus panel used this information to assign a diagnosis of normal cognition, cognitive impairment but not demented, or dementia (and dementia subtype). Using sampling weights derived from the HRS, we estimated the national prevalence of dementia, AD and vascular dementia by age and gender. Results: The prevalence of dementia among individuals aged 71 and older was 13.9%, comprising about 3.4 million individuals in the USA in 2002. The corresponding values for AD were 9.7% and 2.4 million individuals. Dementia prevalence increased with age, from 5.0% of those aged 71–79 years to 37.4% of those aged 90 and older. Conclusions: Dementia prevalence estimates from this first nationally representative population-based study of dementia in the USA to include subjects from all regions of the country can provide essential information for effective planning for the impending healthcare needs of the large and increasing number of individuals at risk for dementia as our population ages.
© 2007 S. Karger AG, Basel
Article / Publication Details
Copyright / Drug Dosage / DisclaimerCopyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher.
Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug.
Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.