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      Accuracy of the 15-item Geriatric Depression Scale (GDS-15) in a community-dwelling oldest-old sample: the Pietà Study Translated title: Acurácia da versão de 15 itens da Escala de Depressão Geriátrica (GDS-15) em uma amostra de idosos muito-idosos residentes na comunidade: Estudo Pietà

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          Abstract

          Abstract Introduction Late-life depression (LLD) is common, but remains underdiagnosed. Validated screening tools for use with the oldest-old in clinical practice are still lacking, particularly in developing countries. Objectives To evaluate the accuracy of a screening tool for LLD in a community-dwelling oldest-old sample. Methods We evaluated 457 community-dwelling elderly subjects, aged ≥75 years and without dementia, with the Geriatric Depression Scale (GDS-15). Depression diagnosis was established according to DSM-IV criteria following a structured psychiatric interview with the Mini International Neuropsychiatric Interview (MINI). Results Fifty-two individuals (11.4%) were diagnosed with major depression. The area under the receiver operating characteristic (ROC) curve was 0.908 (p<0.001). Using a cut-off score of 5/6 (not depressed/depressed), 84 (18.4%) subjects were considered depressed by the GDS-15 (kappa coefficient = 53.8%, p<0.001). The 4/5 cut-off point achieved the best combination of sensitivity (86.5%) and specificity (82.7%) (Youden's index = 0.692), with robust negative (0.9802) and reasonable positive predictive values (0.3819). Conclusion GDS-15 showed good accuracy as a screening tool for major depression in this community-based sample of low-educated oldest-old individuals. Our findings support the use of the 4/5 cut-off score, which showed the best diagnostic capacity.

          Translated abstract

          Resumo Introdução A depressão geriátrica (DG) é um transtorno prevalente que permanece sendo subdiagnosticado. Ferramentas validadas para rastreio de DG em idosos muito idosos na prática clínica são necessárias, especialmente em países em desenvolvimento. Objetivos Avaliar a acurácia diagnóstica da Escala de Depressão Geriátrica (Geriatric Depression Scale, GDS-15) em uma população de idosos muito idosos residentes na comunidade. Métodos Foram avaliados, com a GDS-15, 457 indivíduos nãodemenciados, residentes na comunidade, com idade ≥75 anos. O diagnóstico definitivo de depressão maior foi realizado através da entrevista semiestruturada Mini International Neuropsychiatric Interview (MINI), de acordo com os critérios do DSM-IV. Resultados Cinquenta e dois indivíduos (11,4%) foram diagnosticados com episódio depressivo maior. A área sob a curva receiver operating characteristic (ROC) foi de 0,908 (p<0,001). Utilizando-se o ponto de corte 5/6 (não-deprimido/deprimido), 84 (18,4%) indivíduos foram considerados deprimidos pela GDS-15 (coeficiente de kappa = 53,8%, p<0,001). O ponto de corte 4/5 atingiu a melhor combinação entre sensibilidade (86,5%) e especificidade (82,7%) (índice de Youden = 0,692), com valor preditivo negativo robusto (0,9802) e razoável valor preditivo positivo (0,3819). Conclusão A GDS-15 demonstrou boa acurácia para o rastreio de depressão maior nesta amostra de base populacional de idosos muito idosos com baixa escolaridade. Os resultados do presente estudo indicam que o ponto de corte 4/5 mostrou-se mais adequado para utilização nesta população.

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          Review of community prevalence of depression in later life

          Despite considerable interest, there is no consensus regarding the prevalence of depression in later life.
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            Screening performance of the 15-item geriatric depression scale in a diverse elderly home care population.

            To empirically evaluate the psychometric properties of the 15-item Geriatric Depression Scale (GDS-15); determine the optimal cutoff points and screening performance for the detection of major depression; and examine differential item functioning (DIF) to determine the variability of item responses across sociodemographics in an elderly home care population. A secondary analysis of data collected from a random sample study. Homebound subjects newly admitted over a 2-year-period to a large visiting nurse service agency in Westchester, New York. Five hundred twenty-six subjects over age 65, newly admitted to home care for skilled nursing. Major depression was diagnosed using both patient, Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, and best estimate procedures. Self-report measures included the GDS-15, activities of daily living (ADL), instrumental ADL, and pain intensity. Cognitive impairment was assessed using the Mini-Mental State Examination and medical morbidity using the Charlson Comorbidity Index. Optimal cutoff (5) yielded sensitivity 71.8% and specificity of 78.2%, however, the accuracy of the GDS-15 was not influenced by severity of medical burden. Persons with a cluster of ailments were twice as likely (Adj odds ratio = 2.47; 95% confidence interval = 1.49-4.09) to be diagnosed with depression. DIF analyses revealed no variability of item responses across sociodemographics. Main findings suggest that the accuracy of the GDS-15 was not influenced by severity of clinical or functional factors, or sociodemographics. This has broad implications suggesting that the very old, ill, and diverse populations can be appropriately screened for depression using the GDS-15.
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              Mini International Neuropsychiatric Interview (MINI): validation of a short structured diagnostic psychiatric interview

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                trends
                Trends in Psychiatry and Psychotherapy
                Trends Psychiatry Psychother.
                Associação de Psiquiatria do Rio Grande do Sul (Porto Alegre, RS, Brazil )
                2237-6089
                2238-0019
                December 2017
                : 39
                : 4
                : 276-279
                Affiliations
                [1] Belo Horizonte Minas Gerais orgnameUniversidade Federal de Minas Gerais orgdiv1Faculdade de Medicina Brazil
                [2] Belo Horizonte Minas Gerais orgnameUniversidade Federal de Minas Gerais orgdiv1Faculdade de Medicina orgdiv2Departamento de Clínica Médica Brazil
                Article
                S2237-60892017000400276
                10.1590/2237-6089-2017-0046
                29267511
                2cd4f90f-a4a0-4e03-b4fa-2b57ea8a18ca

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 05 April 2017
                : 19 May 2017
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 16, Pages: 4
                Product

                SciELO Brazil


                Depressão,psiquiatria geriátrica,avaliação geriátrica,Depression,geriatric psychiatry,geriatric assessment

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