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      The Clock Drawing Test as a Valid Screening Method for Mild Cognitive Impairment

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          Abstract

          To validate the Clock Drawing Test (CDT) as a screening method for detecting mild cognitive impairment (MCI) and to find the appropriate scoring protocol and its cutoff point, we compared the sensitivity and specificity of three CDT protocols. Subjects included 219 outpatients with memory complaints, who were attending the geriatric memory clinic. Cahn’s protocol, with a cutoff point of 7, was more successful at differentiating clinically diagnosed MCI subjects from normal elderly individuals, with higher sensitivity (74.7%) and specificity (75.6%), than were the other protocols. The CDT, as a handy screening method, may be useful for clinicians to reliably identify subjects with MCI, and it may contribute to early detection of dementia.

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          Quantitative and qualitative analyses of clock drawings in Alzheimer's and Huntington's disease

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            Author and article information

            Journal
            DEM
            Dement Geriatr Cogn Disord
            10.1159/issn.1420-8008
            Dementia and Geriatric Cognitive Disorders
            S. Karger AG
            1420-8008
            1421-9824
            2004
            August 2004
            13 August 2004
            : 18
            : 2
            : 172-179
            Affiliations
            aDepartment of Geriatrics, Medicine in Growth and Aging, Program in Health and Community Medicine, Nagoya University Graduate School of Medicine, Nagoya, and bDepartment of Epidemiology, National Institute for Longevity Sciences 36–3, Gengo, Morioka, Obu, Japan
            Article
            79198 Dement Geriatr Cogn Disord 2004;18:172–179
            10.1159/000079198
            15211073
            77e3040c-fb13-4be0-ab15-4be44f9ba46e
            © 2004 S. Karger AG, Basel

            Copyright: 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.

            History
            : 22 January 2004
            Page count
            Figures: 1, Tables: 5, References: 32, Pages: 8
            Categories
            Original Research Article

            Geriatric medicine,Neurology,Cardiovascular Medicine,Neurosciences,Clinical Psychology & Psychiatry,Public health
            Screening test,Cutoff point,Clock drawing,Cahn’s scoring protocol,Early diagnosis of dementia

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