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.
View text version. Data are from the National Survey of Children with Special Health Care Needs, collected in 2009-2010. Parents were asked about their childâs ADHD medication use in the previous week and about behavioral therapy in the previous year.Detailed information by state. Approximately 11% of children 4-17 years of age (6.4 million) have been diagnosed with ADHD as of 2011. 2  The percentage of children with an ADHD diagnosis continues to increase, from 7.8% in 2003 to 9.5% in 2007 and to 11.0% in 2011.