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Detection of Memory Impairment among Community-Dwelling Elderly by Using the Rivermead Behavioural Memory Test Shunichiro Shinagawa 1,2 , Yasutaka Toyota 2 , Teruhisa Matsumoto 2 , Naomi Sonobe 2 , Hiroyoshi Adachi 2,3 , Takaaki Mori 2 , Tomohisa Ishikawa 2 , Ryuji Fukuhara 2 , Manabu Ikeda 2,4 1Department of Psychiatry,The Jikei University School of Medicine 2Department of Neuropsychiatry,Neuroscience,Ehime University Graduate School of Medicine 3Osaka University Health Care Center 4Department of Psychiatry and Neuropathobiology,Faculty of Medical and Pharmaceutical Science,Kumamoto University Keyword: Rivermead Behavioural Memory Test , memory impairment , elderly , dementia , mild cognitive impairment pp.609-614
Published Date 2010/6/1
DOI https://doi.org/10.11477/mf.1416100699
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Abstract

 Aim: The aim of this study was to use the Rivermead Behavioural Memory Test (RBMT) to evaluate everyday memory impairment among community-dwelling elderly who had normal cognitive function and performed daily activities normally but displayed memory impairments,and to diagnose the condition as either mild cognitive impairment or dementia.

 Method: Among the 1,290 community-dwelling elderly persons who participated in the study,72 subjects scored higher than 24 on the Mini-Mental State Examination (MMSE): these subjects performed daily activities normally,but their family members reported that they showed memory impairments. Fifty-two subjects completed RBMT,Clinical Dementia Rating,and brain computed tomography,and a final diagnosis was established.

 Results: The mean standard profile score was 15.1±5.0 and mean screening score was 6.4±3.0. RBMT score was correlated with the MMSE score. Nine of the subjects were diagnosed with dementia and 26 of them were found to be normal.

 RBMT achieved 100% sensitivity and specificity with regard to the differentiation of subjects with Alzheimer's disease. However,some subjects were diagnosed with dementia even though their RBMT score was higher than the cut-off score.

 Conclusion: RBMT was useful in detecting memory impairments of AD subjects in community-based surveys. However,some subjects were diagnosed with dementia because of the existence of other cognitive impairments among community-dwelling elderly.

(Received: September 30,2009,Accepted: January 15,2010)


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電子版ISSN 1344-8129 印刷版ISSN 1881-6096 医学書院

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