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http://hdl.handle.net/10553/49081
Title: | Validity of a self-reported diagnosis of depression among participants in a cohort study using the Structured Clinical Interview for DSM-IV (SCID-I) | Authors: | Sanchez-Villegas, Almudena Schlatter, Javier Ortuno, Felipe Lahortiga, Francisca Pla, Jorge Benito, Silvia Martinez Gonzalez, Miguel A. |
UNESCO Clasification: | 32 Ciencias médicas 3211 Psiquiatría |
Keywords: | Sun Cohort Spanish Population Physical-Activity Mental-Disorders Validation, et al |
Issue Date: | 2008 | Journal: | BMC Psychiatry | Abstract: | Background: Depression assessment in population studies is usually based on depressive symptoms scales. However, the use of scales could lead to the choice of an arbitrary cut-off point depending on the sample characteristics and on the patient diagnosis. Thus, the use of a medical diagnosis of depression could be a more appropriate approach. Objective: To validate a self-reported physician diagnosis of depression using the Structured Clinical Interview for DSM-IV (SCID-I) as Gold Standard and to assess the factors associated to a valid self-reported diagnosis. Methods: The SUN Project is a cohort study based on university graduates followed-up through postal questionnaires. The response to the question included in the questionnaire: Have you ever been diagnosed of depression by a physician? was compared to that obtained through the SCID-I applied by a psychiatrist or a clinical psychologist. The percentages of confirmed depression and non-depression were assessed for the overall sample and according to several characteristics. Logistic regression models were fitted to ascertain the association between different factors and a correct classification regarding depression status. Results: The percentage of confirmed depression was 74.2%; 95% confidence interval (95% CI) = 63.3-85.1. Out of 42 participants who did not report a depression diagnosis in the questionnaire, 34 were free of the disease (%confirmed non-depression = 81.1%; 95% CI = 69.1-92.9). The probability of being a true positive was higher among ex-smokers and non-smokers and among those overweight or obese but the differences were not statistically significant. Conclusion: The validity of a self-reported diagnosis of depression in the SUN cohort is adequate. Thus, this question about depression diagnosis could be used in further investigations regarding this disease in this graduate cohort study. | URI: | http://hdl.handle.net/10553/49081 | ISSN: | 1471-244X | DOI: | 10.1186/1471-244X-8-43 | Source: | BMC Psychiatry,v. 8 (43) |
Appears in Collections: | Artículos |
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