Article

Phenomenology and Epidemiology of Tic Disorders and Trichotillomania

Emily J. Ricketts, Douglas W. Woods, Diana Antinoro and Martin E. Franklin

in The Oxford Handbook of Obsessive Compulsive and Spectrum Disorders

Published in print August 2011 | ISBN: 9780195376210
Published online September 2012 | | DOI: http://dx.doi.org/10.1093/oxfordhb/9780195376210.013.0022

Series: Oxford Library of Psychology

 Phenomenology and Epidemiology of Tic Disorders and Trichotillomania

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This chapter highlights the diagnostic features and clinical characteristics of tic disorders and Tourette syndrome, trichotillomania, and nailbiting, and their diagnostic distinction from OCD and other conditions. Nonclinical forms of these disorders are described. Information on the prevalence and limitations of epidemiological research is provided. The gender ratio, age of onset, longitudinal course, functional impairment, and healthcare utilization are described for each disorder. The cross-cultural features of the disorders are highlighted, and patterns of psychiatric comorbidity are discussed.

Keywords: Tourette syndrome; trichotillomania; nailbiting; nonclinical; differential diagnosis; prevalence; impairment; cross-cultural; comorbidity

Article.  15164 words. 

Subjects: Psychology ; Clinical Psychology

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