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Epidemiology of Attention Deficit/Hyperactivity Disorde
Attention deficit/hyperactivity disorder (ADHD) is a neuropsychiatric disorder characterized with attention deficits, hyperactivity, or impulsiveness. The prevalence of ADHD varies from country to country and from various cultural and geographical zones. The pattern and distribution of ADHD also vary with gender and age. It has also been noted that some factors are associated with ADHD. For instance, some central nervous system anomalies had been associated with ADHD. Genetic and environmental risk factors have also been implicated. Some conduct and learning disorders have also been associated with ADHD. Of recent, some cardiac anomalies and behavioral disorders such as enuresis and encopresis have all been associated with children with ADHD.
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