Myomancy ADHD, Dyslexia and Autism

This image is taken from a new Centre of Disease Control survey of ADHD sufferers and their medication usage in the USA. Its surprising to see such a variation in usage. Arkansas children are three times as likely to be on meds such as Ritalin as Californian children. A separate map shows the prevalence of ADHD diagnosis. Again a wide difference between states prevalence of ADHD diagnosis.
Overall 4.4 million US children have been diagnosed and 2.5 million (56%) were reported to be taking medication. Boys aged 16 years and girls aged 11 years were most likely to be diagnosed, 14.9% and 6.1% respectively. Generally non-Hispanic, primarily English-speaking, and insured children were more likely to be diagnosed. ADHD was diagnosed amongst boys significantly more frequently in families with incomes below the poverty threshold than in families with incomes at or above the poverty threshold. Medication was most common for ADHD children aged 9–12 years.
The CDC have a good page about ADHD.
See also: ADHD, Children and Medication , FDA Concerns Over ADHD Drug Concerta, ADHD Drug Market: $2.7 billion