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Comment & Response
April 2017

Child vs Adult Onset of Attention-Deficit/Hyperactivity Disorder—Reply

Author Affiliations
  • 1Department of Psychiatry, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
  • 2Post-Graduate Program in Epidemiology, Universidade Federal de Pelotas, Pelotas, Brazil
JAMA Psychiatry. 2017;74(4):421-422. doi:10.1001/jamapsychiatry.2016.2782

In Reply We thank Solanto for her interest in our article1 and for providing some thoughtful ideas on how to understand these intriguing similar findings from 3 population samples that challenge the notion of attention-deficit/hyperactivity disorder (ADHD) as only a child-onset neurodevelopmental disorder.2,3 Solanto suggests that our study1 might have missed a substantial proportion of cases of ADHD predominantly inattentive type (ADHD-PI) in childhood, consequently decreasing the rate of adult ADHD with roots in childhood. She based this hypothesis on the idea that we had collected data on ADHD symptoms in childhood before DSM-IV criteria.

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