Late-life depression and mortality: influence of gender and antidepressant use |
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Authors: | Ryan Joanne Carriere Isabelle Ritchie Karen Stewart Robert Toulemonde Gwladys Dartigues Jean-François Tzourio Christophe Ancelin Marie-Laure |
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Institution: | Institut National de la Santé et de la Recherche Médicale (INSERM) U888, University of Montpellier, France. |
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Abstract: | BACKGROUND: Depression may increase the risk of mortality among certain subgroups of older people, but the part played by antidepressants in this association has not been thoroughly explored. AIMS: To identify the characteristics of older populations who are most at risk of dying, as a function of depressive symptoms, gender and antidepressant use. METHOD: Adjusted Cox proportional hazards models were used to determine the association between depression and/or antidepressant use and 4-year survival of 7,363 community-dwelling elderly people. Major depressive disorder was evaluated using a standardised psychiatric examination based on DSM-IV criteria and depressive symptoms were assessed using the Center for Epidemiological Studies-Depression scale. RESULTS: Depressed men using antidepressants had the greatest risk of dying, with increasing depression severity corresponding to a higher hazard risk. Among women, only severe depression in the absence of treatment was significantly associated with mortality. CONCLUSIONS: The association between depression and mortality is gender-dependent and varies according to symptom load and antidepressant use. |
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