Tourette Syndrome & ADHD
ADHD is the most common Comorbid condition seen as part of the neurodevelopmental spectrum disorder Tourette Syndrome, with the latest studies finding that only 2–5% of those with Tourette have what’s referred to as “Pure Tourette”, meaning they only present with motor and vocal tics. Commonly associated features of ADHD include low frustration tolerance, irritability and mood lability and it can include Hyperactive/Impulsive, Inattentive or Combined Subtypes.
Current studies show ADHD is likely present in up to 90% of those with Tourette. Conversely, studies also show that up to 50% of those with ADHD have Tourette or another Tic Disorder.
Typically the comorbid conditions begin to show early, on average around the age of 4 which is prior to when the tics often begin to be seen — commonly between the ages of 7–10.