How common is it? Based on a number of studies, the likely rate at any one time of school aged children having a diagnosis of ADHD is 5%, with more boys than girls suffering from the condition.[1]
Waddell C, McEwan K, Shepherd C, Offord DR, Hua JM. (2005). A Public Health Strategy to Improve the Mental Health of Canadian Children. Canadian Journal of Psychiatry; 50:226-233.
