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Attention Deficit prevalence rates | ADD ADHD
Prevalence Rates of ADHD
Attention deficit hyperactivity disorder (ADD / ADHD) is one of the most common mental disorders that develop in children. The National Institute of Mental Health (NIMH), estimates that between 3% and 5% of preschool and school-age children have ADHD or approximately two million children in the United States. This means in a class of 25 to 30 students, it is likely that at least one student will have this common condition.
The American Psychiatric Association's DSM-IV (Diagnostic and Statistical Manual, Fourth Edition, Revised Text) estimates a slightly higher percentage.
The Centers for Disease Control and Prevention (CDC) provide additional numbers:
As of 2003:
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