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Criteria for ADHD:
- Either A or B (below)
- Some symptoms that cause impairment were present before age 7 years.
- Some impairment from the symptoms is present in two or more settings (e.g. at school/work and at home).
- There must be clear evidence of significant impairment in social, school, or work functioning.
- The symptoms do not happen only during the course of a Pervasive Developmental Disorder, Schizophrenia, or other Psychotic Disorder. The symptoms are not better accounted for by another mental disorder (e.g. Mood Disorder, Anxiety Disorder, Dissociative Disorder, or a Personality Disorder).
|A. Six or more of the following symptoms of inattention have been present for at least 6 months to a point that is disruptive and inappropriate for developmental level:|
|B. Six or more of the following symptoms of hyperactivity-impulsivity have been present for at least 6 months to an extent that is disruptive and inappropriate for developmental level.|
Based on these criteria, three types of ADHD are identified:
- ADHD, Combined Type
if both criteria A and B are met for the past 6 months
- ADHD, Predominantly Inattentive Type
if criterion A is met but criterion B is not met for the past six months
- ADHD, Predominantly Hyperactive-Impulsive Type
if criterion B is met but Criterion 1A is not met for the past six months.
American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision. Washington, DC, American Psychiatric Association, 2000.
Updated: 6 November 2014 by Jeremy Varnham