Tic disorders

Tourette’s Disorder

Persistent (Chronic) motor or vocal tic disorder

Provisional tic disorder

Prevalence
Tics are common in childhood but transient in most cases.
Prevalence of Tourette’s disorder is 3-8 per 1000 in school age children.
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Ratio: from 2:1 to 4:1

Development and course

Risk and prognostic factors

Comorbidity

Treatment