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|Validity of a self-reported diagnosis of depression among participants in a cohort study using the Structured Clinical Interview for DSM-IV (SCID-I).|
|Autor(es) : ||Sanchez-Villegas, A. (Almudena)|
Schlatter, J. (Javier)
Ortuño-Sanchez-Pedreño, F. (Felipe)
Lahortiga, F. (Francisca)
Pla, J. (Jorge)
Benito-Corchon, S. (Silvia)
Martinez-Gonzalez, M.A. (Miguel Ángel)
|Palabras clave : ||Materias Investigacion::Ciencias de la Salud::Psiquiatría y psicología|
Materias Investigacion::Ciencias de la Salud::Medicina preventiva
|Fecha incorporación: ||2008|
|Editorial : ||Biomed Central|
|Cita: ||BMC Psychiatry 2008 17;8 (43).|
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.
|Enlace permanente: ||http://hdl.handle.net/10171/7261|
|Aparece en las colecciones: ||DA - Medicina - MPSP -Artículos de revista|
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