Welland (2011 population 50,631) is a city in the Regional Municipality of Niagara in Southern Ontario, Canada. The city is located in the centre of Niagara.
More than 5 million U.S. children, or 9.5 percent, have been diagnosed with ADHD as of 2007, according to the U.S. Centers for Disease Control and Prevention. Kids with the condition may act more impulsively, and have difficulty paying attention and controlling their behavior.
How Many People Are Diagnosed with ADHD Per Year? Itâs hard to say how many people receive a diagnosis each year, but the CDC reports that 11 percent of all children in the U.S. aged 4-17 had been diagnosed with ADHD by 2011. The total number of Americans with ADHD continues to rise â up from 7.8 percent in 2003 to 9.5 percent in 2007 and 11 percent in 2011. Boys are nearly three times more likely to be diagnosed with ADHD (13.2 percent) than are girls (5.6 percent).