Chapter

Prevalence

Andres Magnusson and Timo Partonen

in Seasonal Affective Disorder

Second edition

Published on behalf of Oxford University Press

Published in print October 2009 | ISBN: 9780199544288
Published online February 2013 | e-ISBN: 9780191754593 | DOI: http://dx.doi.org/10.1093/med/9780199544288.003.0015
Prevalence

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SAD is one of the few psychiatric conditions that has a highly predictable time of onset and remission, with a characteristic set of symptoms and response to a specific treatment, i.e. exposure to bright light that may be sunlight or artificial light. SAD may thus be one of the best-demarcated syndromes in psychiatry. SAD is a relatively common condition, although the accurate prevalence rate remains elusive. However, epidemiological studies have demonstrated clearly that SAD is more common in women as well as in younger adults.

Chapter.  6670 words.  Illustrated.

Subjects: Psychiatry

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