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Prevalence of Seasonal Depression in a Prospective Cohort Study

Wirz-Justice, Anna and Ajdacic, Vladeta and Rössler, Wulf and Steinhausen, Hans-Christoph and Angst, Jules. (2019) Prevalence of Seasonal Depression in a Prospective Cohort Study. European Archives of Psychiatry and Clinical Neuroscience, 269 (7). pp. 833-839.

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Official URL: https://edoc.unibas.ch/82750/

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Abstract

The prevalence of autumn/winter seasonality in depression has been documented in the longitudinal Zurich cohort study by five comprehensive diagnostic interviews at intervals over more than 20 years (N = 499). Repeated winter major depressive episodes (MDE-unipolar + bipolar) showed a prevalence of 3.44% (5× more women than men), whereas MDE with a single winter episode was much higher (9.96%). A total of 7.52% suffered from autumn/winter seasonality in major and minor depressive mood states. The clinical interviews revealed novel findings: high comorbidity of Social Anxiety Disorder and Agoraphobia within the repeated seasonal MDE group, high incidence of classic diurnal variation of mood (with evening improvement), as well as a high rate of oversensitivity to light, noise, or smell. Nearly twice as many of these individuals as in the other MDE groups manifested the syndrome of atypical depression (DSM-V), which supports the prior description of seasonal affective disorder (SAD) as presenting primarily atypical symptoms (which include hypersomnia and increase in appetite and weight). This long-term database of regular structured interviews provides important confirmation of SAD as a valid diagnosis, predominantly found in women, and with atypical vegetative symptoms.
Faculties and Departments:07 Faculty of Psychology > Departement Psychologie > Forschungsbereich Klinische Psychologie und Neurowissenschaften > Klinische Psychologie und Epidemiologie (Lieb)
UniBasel Contributors:Steinhausen, Hans-Christoph
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Springer
ISSN:0940-1334
e-ISSN:1433-8491
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:05 Jul 2021 14:08
Deposited On:05 Jul 2021 14:08

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