Published online Sep 6, 2019. doi: 10.12998/wjcc.v7.i17.2420
Peer-review started: April 8, 2019
First decision: June 21, 2019
Revised: July 10, 2019
Accepted: July 27, 2019
Article in press: July 27, 2019
Published online: September 6, 2019
Attention deficit hyperactivity disorder (ADHD) is a common neurodevelopmental disorder with onset in early childhood. It is a clinically heterogenous condition with comorbidity posing a distinct challenge to diagnosing and managing these children and adolescents. This review aims to provide an overview of comorbidity with ADHD including other neurodevelopmental disorders, learning disorders, externalising and internalising disorders. Challenges in screening for, diagnosing and managing comorbidity with ADHD are summarised. Also, methodological challenges and future directions in research in this interesting field are highlighted.
Core tip: Attention deficit hyperactivity disorder (ADHD) is a clinically heterogenous condition that is typically complicated by extensive comorbid conditions. Screening for comorbidity is imperative for appropriately managing these children and adolescents presenting with complex difficulties. Further research is required for elucidating the implications of comorbidity in terms of diagnosing and managing children with ADHD.