ADHD cases in Hispanic children have risen by as much as 83 percent in the past decade, a recent report has said. The increase in the number was reported by a new study published in the Journal of Clinical Psychology. It was reported by Fox News Latino that between 2003 and 2011, the number of Hispanic children aged 5 to 17 diagnosed with ADHD increased from 4.2 percent to 7.7 percent. This is the largest reported increase of any racial or ethnic group.