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ASCERTAINING LATE-LIFE DEPRESSIVE SYMPTOMS IN EUROPE: AN EVALUATION OF THE SURVEY VERSION OF THE EURO-D SCALE IN 10 NATIONS. THE SHARE PROJECT
Author
Affilliation
Institute of Psychiatry. Department of Health Services and Population Research., King’s College London. London, UK/Centro de Pesquisa René Rachou. Fundação Oswaldo Cruz. Belo Horizonte, MG, Brazil/Faculdade da Saúde e Ecologia Humana. Vespasiano, MG, Brazil
Institute of Psychiatry. Department of Health Services and Population Research., King’s College London. London, UK
Institute of Psychiatry. Department of Health Services and Population Research., King’s College London. London, UK
Institute of Psychiatry. Department of Health Services and Population Research., King’s College London. London, UK
Department of Psychiatry. University of Cambridge. Cambridge, UK
Department of Psychiatry. Federal University of Rio de Janeiro. Rio de Janeiro, RJ, Brazil
Service of Geriatric Medicine & Geriatric Rehabilitation. University of Lausanne Medical Center. Lausanne, Switzerland
Universitatsklinik und Hochschulambulanz fur Psychiatrie und Psychotherapie. Berlin, Germany
Department of Psychiatry. Division of Social Psychiatry, Medical University of Vienna. Vienna, Austria
Institut National de la Santé et la Recherche Médicale. E361 Pathologies of the Nervous System: Epidemiological and Clinical Research. Montpelier, France
Department of Neurology. Aristotle University of Thessaloniki. Thessaloniki, Greece
Departamento de Psiquiatria. Facultad de Medicina. Santiago de Compostela, Spain
Institute of Psychiatry. Department of Health Services and Population Research., King’s College London. London, UK
Institute of Psychiatry. Department of Health Services and Population Research., King’s College London. London, UK
Institute of Psychiatry. Department of Health Services and Population Research., King’s College London. London, UK
Institute of Psychiatry. Department of Health Services and Population Research., King’s College London. London, UK
Department of Psychiatry. University of Cambridge. Cambridge, UK
Department of Psychiatry. Federal University of Rio de Janeiro. Rio de Janeiro, RJ, Brazil
Service of Geriatric Medicine & Geriatric Rehabilitation. University of Lausanne Medical Center. Lausanne, Switzerland
Universitatsklinik und Hochschulambulanz fur Psychiatrie und Psychotherapie. Berlin, Germany
Department of Psychiatry. Division of Social Psychiatry, Medical University of Vienna. Vienna, Austria
Institut National de la Santé et la Recherche Médicale. E361 Pathologies of the Nervous System: Epidemiological and Clinical Research. Montpelier, France
Department of Neurology. Aristotle University of Thessaloniki. Thessaloniki, Greece
Departamento de Psiquiatria. Facultad de Medicina. Santiago de Compostela, Spain
Institute of Psychiatry. Department of Health Services and Population Research., King’s College London. London, UK
Abstract
The reported prevalence of late-life depressive symptoms varies widely between studies, a finding that might be attributed to cultural as well as methodological factors. The EURO-D scale was developed to allow valid comparison of prevalence and risk associations between European countries. This study used Confirmatory Factor Analysis (CFA) and Rasch models to assess whether the goal of measurement invariance had been achieved; using EURO-D scale data collected in 10 European countries as part of the Survey of Health, Ageing and Retirement in Europe (SHARE) (n = 22,777). The results suggested a two-factor solution (Affective Suffering and Motivation) after Principal Component Analysis (PCA) in 9 of the 10 countries. With CFA, in all countries, the two-factor solution had better overall goodness-of-fit than the one-factor solution. However, only the Affective Suffering subscale was equivalent across countries, while the Motivation subscale was not. The Rasch model indicated that the EURO-D was a hierarchical scale. While the calibration pattern was similar across countries, between countries agreement in item calibrations was stronger for the items loading on the affective suffering than the motivation factor. In conclusion, there is evidence to support the EURO-D as either a uni-dimensional or bi-dimensional scale measure of depressive symptoms in late-life across European countries. The Affective Suffering sub-component had more robust cross-cultural validity than the Motivation sub-component. Copyright (C) 2008 John Wiley & Sons, Ltd
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