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      Combined instruments for the screening of dementia in older people with low Education Translated title: Instrumentos combinados para o rastreio de demência em idosos com baixo nível educacional

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          Abstract

          OBJECTIVE: To determine which combination of cognitive tests and informant reports can improve the diagnostic accuracy of dementia screening in low educated older people. METHOD: Patients with mild to moderate dementia (n=34) according to ICD-10 and DSM-III-R criteria and 59 older controls were assessed with the Mini-Mental State Examination (MMSE) and the Fuld Object Memory Evaluation (FOME). Informants were assessed using the Informant Questionnaire on Cognitive Decline in the Elderly and the Bayer-Activities of Daily Living Scale. RESULTS: The 4 instruments combined with the mixed rule correctly classified 100% and the logistic regression (weighted sum) classified 95.7% of subjects. The weighted sum had a significantly larger ROC area compared to MMSE (p=0.008) and FOME (p=0.023). The specificity of the tested combinations was superior to the MMSE alone (p=0.002). CONCLUSIONS: Cognitive tests combined with informant reports can improve the screening of mild to moderate dementia in low educated older people.

          Translated abstract

          OBJETIVO: Determinar qual combinação de testes cognitivos e avaliações do informante pode melhorar o rastreio de demência em idosos com baixo nível educacional. MÉTODO: Pacientes com demência leve a moderada (n=34) de acordo com critérios da CID-10 e DSM-III-R, e 59 controles idosos foram avaliados com o Mini-Exame do Estado Mental (MEEM) e com o "Fuld Object Memory Evaluation" (FOME). Informantes foram avaliados com o "Informant Questionnaire on Cognitive Decline in the Elderly" e a escala Bayer-Atividades da Vida Diária. RESULTADOS: Os quatro instrumentos combinados com a regra mista classificaram 100% e a regressão logística (soma ponderada) classificou 95,7% dos sujeitos. A soma ponderada teve uma área da curva ROC significativamente maior comparada ao MEEM (p=0,008) e FOME (p=0,023). A especificidade das combinações testadas foi superior ao MEEM isolado (p=0,002). CONCLUSÕES: Testes cognitivos combinados com relatos dos informantes podem melhorar o rastreio de demência leve a moderada em idosos com baixo nível educacional.

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          The Informant Questionnaire on cognitive decline in the elderly (IQCODE): a review.

          The IQCODE is widely used as a screening test for dementia, particularly where the subject is unable to undergo direct cognitive testing or for screening in populations with low levels of education and literacy. This review draws together research on the psychometric properties and validity of the IQCODE. A systematic search of the literature was carried out using three databases. The review shows that the questionnaire has high reliability and measures a single general factor of cognitive decline. It validly reflects past cognitive decline, performs at least as well at screening as conventional cognitive screening tests, predicts incident dementia, and correlates with a wide range of cognitive tests. A particular strength is that the IQCODE is relatively unaffected by education and pre-morbid ability or by proficiency in the culture's dominant language. The disadvantage of the IQCODE is that it is affected by informant characteristics such as depression and anxiety in the informant and the quality of the relationship between the informant and the subject. Because the IQCODE provides information complementary to brief cognitive tests, harnessing them together can improve screening accuracy.
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            Classificação de transtornos mentais e de comportamento da CID-10: descrições clínicas e diretrizes diagnósticas

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              The Bayer Activities of Daily Living Scale (B-ADL).

              The Bayer Activities of Daily Living Scale (B-ADL) has been developed on an international basis to assess deficits in the performance of everyday activities. The scale's main target group is community dwelling patients who suffer mild cognitive impairment or mild-to-moderate dementia. It comprises 25 items and takes the form of a questionnaire to be completed by a caregiver or other informant sufficiently familiar with the patient. Statistical, clinical and domain-related criteria were used to select items from among a large number of activities of daily living (ADL) questions field tested in pilot studies in the USA, Germany, UK, Russia and Greece. The items included in the B-ADL have been chosen for their sensitivity to cognitive impairment, simplicity of concept, international applicability and their relevance to patients coping with the demands of everyday life. The scale uses items which reflect a wide range of domains. On account of its brevity, it is thought especially suitable for application within a GP and primary care context for both screening a patient's ADL capacities as well as for documentation of treatment effects and the progress of dementia. This paper focuses on a description of the scale and its application.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                anp
                Arquivos de Neuro-Psiquiatria
                Arq. Neuro-Psiquiatr.
                Academia Brasileira de Neurologia - ABNEURO (São Paulo )
                1678-4227
                June 2009
                : 67
                : 2a
                : 185-190
                Affiliations
                [1 ] Universidade de São Paulo Brazil
                [2 ] Universidade de São Paulo Brazil
                [3 ] Universidade de São Paulo Brazil
                [4 ] Universidade de São Paulo Brazil
                Article
                S0004-282X2009000200003
                10.1590/S0004-282X2009000200003
                5b61fb01-332b-4a6e-927f-5bb66e71a8f9

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0004-282X&lng=en
                Categories
                NEUROSCIENCES
                PSYCHIATRY

                Neurosciences,Clinical Psychology & Psychiatry
                dementia,screening,cognitive tests,informant report,demência,rastreio,testes cognitivos,relato de informantes

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