One in five US teenage boys diagnosed with hyperactivity disorder

... 00 parents from 2011 to 2012. The report said that 15 per cent of school-age boys in the United States have received an ADHD diagnosis, compared to seven per cent among girls.

http://www.straitstimes.com/breaking-news/world/story/one-five-us-teenage-boys-diagnosed-hyperactivity-disorder-report-20130401