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DIAGNOSTIC CRITERIA FOR TIC DISORDERS



Transient Tic Disorders

- most common of the tic disorders
- onset during early school years
- affects 5% to 24% of all children
- single or multiple motor and/or vocal tics occurring daily for at least two weeks but for no longer than one year
- three to four times more common in males than females
- more common in the first-degree relatives of people who have transient tic disorders

Chronic Motor/Vocal Tic Disorder

- onset before age 21
- usually persist unchanged throughout a period of more than one year involves either motor or vocal tics
- generally related to Tourette's syndrome

Tourette Syndrome

- Symptoms begin before age 21.
- Tics occur for more than one year.
- Tics are highly variable, changing over time in anatomic location, number, complexity, and frequency.
- Associated problems may include obsessive compulsive disorder.
- Associated behavioral difficulties may include problems in attention, hyperactivity, and emotional liability.
- Symptoms can be suppressed at school, then emerge abruptly upon arrival in the safety of the home.
- Fifty to sixty percent of children with TS have attention deficit hyperactive disorder.


Tourettes - Our Story
Our Tourette Links
Tourette Tips
Classroom Strategies with Tourettes
Glossary of Terms for Tourettes
F.A.Q. about Tourettes
Simplified Chart for Tic ID
Common Myths about TS
Diag. Criteria for TS