ADHD and Coexisting Conditions: Disruptive Behavior Disorders
(WWK 5B) Can't find what you're looking for? Our health
information specialists are here to help. Contact us at
800-233-4050 or online. WWK refers to the What We Know series of
information sheets on ADHD. See the complete list. See the PDF
version of this sheet. Attention-deficit/hyperactivity disorder
(ADHD) is a common neurobiological condition affecting 5-8
percent of school age children1,2,3,4,5,6,7 with symptoms
persisting into adulthood in as many as 60 percent of cases
(i.e. approximately 4% of adults). 8,9 In addition,approximately
two thirds of children with ADHD have at least one other
coexisting condition.10 As can be seen, any disorder can coexist
with ADHD, but certain disorders such as the disruptive behavior
disorders seem to occur more commonly.11 This What We Know Sheet
deals with the common disruptive behavior disorders oppositional
defiant disorder (ODD) and conduct disorder (CD). Having one of
these coexisting Disruptive Behavio