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ADHD and autism symptoms in youth: a network analysis

Farhat, Luis, Brentani, Helena, de Toledo, Victor, Shephard, Elizabeth, Mattos, Paulo, Baron-Cohen, Simon, Thapar, Anita ORCID: https://orcid.org/0000-0002-3689-737X, Casella, Erasmo and Polanczyk, Guilherme 2022. ADHD and autism symptoms in youth: a network analysis. Journal of Child Psychology and Psychiatry 63 (2) , pp. 143-151. 10.1111/jcpp.13436

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Abstract

Background Previous research investigating the overlap between attention-deficit/hyperactivity disorder (ADHD) and autism spectrum disorder (henceforth, autism) symptoms in population samples have relied on latent variable modeling in which averaged scores representing dimensions were derived from observed symptoms. There are no studies evaluating how ADHD and autism symptoms interact at the level of individual symptom items. Methods We aimed to address this gap by performing a network analysis on data from a school survey of children aged 6–17 years old (N = 7,405). ADHD and autism symptoms were measured via parent-report on the Swanson, Nolan, Pelham-IV questionnaire and the Childhood Autism Spectrum test, respectively. Results A relatively low interconnectivity between ADHD and autism symptoms was found with only 10.06% of possible connections (edges) between one ADHD and one autism symptoms different than zero. Associations between ADHD and autism symptoms were significantly weaker than those between two symptoms pertaining to the same construct. Select ADHD symptoms, particularly those presenting in social contexts (e.g. ‘talks excessively’, ‘does not wait turn’), showed moderate-to-strong associations with autism symptoms, but some were considered redundant to autism symptoms. Conclusions The present findings indicate that individual ADHD and autism symptoms are largely segregated in accordance with diagnostic boundaries corresponding to these conditions in children and adolescents from the community. These findings could improve our clinical conceptualization of ADHD and autism and guide advancements in diagnosis and treatment.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
MRC Centre for Neuropsychiatric Genetics and Genomics (CNGG)
Publisher: Wiley
ISSN: 0021-9630
Date of First Compliant Deposit: 13 April 2021
Date of Acceptance: 30 March 2021
Last Modified: 22 Jun 2024 20:17
URI: https://orca.cardiff.ac.uk/id/eprint/140456

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