Conduct disorder typically appears in children and adolescents and is frequently comorbid with attention deficit hyperactivity disorder (ADD or ADHD).
Both ADHD and CD are associated with disability beyond immediate health loss, namely adverse outcomes including academic under-achievement, other mental and substance use disorders, and criminality.CD is twice as prevalent in males as it is in females and is diagnosed in approximately 6 to 16% of school-age boys and 2 to 9% of school-aged girls.
Subtypes of CD are determined by age of onset (childhood-onset vs. adolescent-onset) and the presence or absence of callous-unemotional traits, such as deficits in empathy and guilt.
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