While the condition is most often associated with children, there has been a more recent understanding the Attention Deficit Disorders (ADD, ADHD) continue into adulthood for many individuals. Symptoms such as inattention, impulsivity and over activity are now known to continue into adulthood for a significant percentage of children with ADD. Unfortunately, relatively few adults are diagnosed or treated for ADD.
The prevalence of ADD in adults is unknown; very few have been studied. In the few treatment studies of adults, there does not appear to be a significant sex difference. About two-thirds of the children who are diagnosed in or before elementary school with ADD continue to have behavioral symptoms in adolescence. During this time period, associated behavioral, learning, and emotional problems also manifest themselves. Approximately one-third to one-half of these adolescents continue to have symptoms of ADD during their adult years.