Comorbidity is common in Tourettes disorder.1,2,4 While precise prevalence rates are unavailable, it is thought that 50% to 60% of persons with Tourettes disorder have comorbid OCD. Other common comorbid conditions of Tourettes disorder include attention deficit-hyperactivity disorder (50%), oppositional defiant disorder (33%), and conduct disorder (33%).4 Mood disorders also frequently complicate Tourettes disorder and are associated with the social isolation often seen in persons with Tourettes disorder. Although sometimes considered synonymous with Tourettes disorder, coprolalia (the sudden outburst of swear words) is a symptom of this condition and is seen in a minority (21%Ð37%) of patients with Tourettes disorder.
1. American Psychiatric Association. Diagnostic and statistical manual of mental disorders, 4th ed., text revision. Washington (DC): The Association; 2000.
2. Sadock BJ, Sadock VA. Synopsis of psychiatry. 9th ed. Philadelphia: Lippincott Williams & Wilkins; 2003:1246-53.
4. Shavitt RG, Hounie AG, Rosario Campos MC, Miguel EC. Tourettes syndrome. Psychiatr Clin North Am 2006;
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