%0 Journal Article
%T The Prevalence of ˇ°Late
%A Mary V. Solanto
%J Journal of Attention Disorders
%@ 1557-1246
%D 2019
%R 10.1177/1087054718765672
%X Objective: Three recent prospective longitudinal studies of population cohorts reported nontrivial rates of ˇ°adult-onsetˇ± ADHD. Given that this result is at odds with the neurodevelopmental conceptualization of ADHD, as well as with general clinical experience, we obtained report of onset of symptoms in a clinical sample of adults diagnosed with ADHD. Method: One hundred four adults diagnosed with ADHD completed retrospective ratings of DSM-IV/DSM-5 ADHD symptoms between the ages of 5 and 12 years. Results: Fifty percent of the sample met full retrospective child diagnostic symptom criteria of six ADHD symptoms in either the inattentive or hyperactive-impulsive domains. Seventy-five percent met a less stringent criterion of four symptoms in either domain. Discussion: These results are interpreted in light of a dimensional model of ADHD that posits emergence of ADHD symptoms and corresponding impairment as a function of increasing performance demands and/or decreasing environmental supports during the course of development
%K ADHD
%K Late-Onset
%K Course
%U https://journals.sagepub.com/doi/full/10.1177/1087054718765672