6/5/2009

Three of every 1,000 school-age children have Tourette syndrome, and white children are more than twice as likely to have it as blacks or Hispanics, a CDC-led study found. Three times as many boys had the condition as girls, the study showed. Researchers said the results show Tourette syndrome is more common than previously thought but less common than other neurological conditions, such as ADHD and autism.

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