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Use of healthcare services before diagnosis of attention-deficit/hyperactivity disorder: a population-based matched case-control study

Prasad, Vibhore; Rezel-Potts, Emma; White, Patrick; Downs, Johnny; Boddy, Nicholas; Sayal, Kapil; Sonuga-Barke, Edmund

Authors

Vibhore Prasad

Emma Rezel-Potts

Patrick White

Johnny Downs

Nicholas Boddy

KAPIL SAYAL kapil.sayal@nottingham.ac.uk
Professor of Child and Adolescent Psychiatry

Edmund Sonuga-Barke



Abstract

Objective: To compare use of healthcare services and reasons for attendance by children and young people (CYP) with attention-deficit/hyperactivity disorder (ADHD) versus non-ADHD controls. Design: Population-based matched case-control study. Setting: English primary care electronic health records with linked hospital records from the Clinical Practice Research Datalink, 1998-2015. Participants: 8127 CYP with an ADHD diagnosis aged 4-17 years at the time of diagnosis and 40 136 non-ADHD controls matched by age, sex and general practitioner (GP) practice. Main outcome measures: Medical diagnoses, prescriptions, hospital admissions and hospital procedures in the 2 years before diagnosis (or the index date for controls). Results: CYP with ADHD attended healthcare services twice as often as controls (rate ratios: GP: 2.0, 95% CI=2.0, 2.1; hospital 1.8, 95% CI=1.8, 1.9). CYP with ADHD attended their GP, received prescriptions and were admitted to hospital for a wide range of reasons. The strongest association for GP attendances, comparing CYP with versus without ADHD, was for 'mental and behavioural disorders' (OR=25.2, 95% CI=23.3, 27.2). Common reasons for GP attendance included eye, ear, nose, throat, oral (OR=1.5, 95% CI=1.4, 1.5) and conditions such as asthma (OR=1.3, 95% CI=1.3, 1.4) or eczema (OR=1.2, 95% CI=1.0, 1.3). Conclusions: Two years before diagnosis, CYP with ADHD attended healthcare services twice as often as CYP without. CYP with ADHD had increased rates of physical conditions, such as asthma and eczema. These contacts may be an opportunity for earlier recognition and diagnosis of ADHD.

Citation

Prasad, V., Rezel-Potts, E., White, P., Downs, J., Boddy, N., Sayal, K., & Sonuga-Barke, E. (2024). Use of healthcare services before diagnosis of attention-deficit/hyperactivity disorder: a population-based matched case-control study. Archives of Disease in Childhood, 109, Article 46-51. https://doi.org/10.1136/archdischild-2023-325637

Journal Article Type Article
Acceptance Date Sep 19, 2023
Online Publication Date Oct 30, 2023
Publication Date 2024-01
Deposit Date Oct 12, 2023
Publicly Available Date Oct 30, 2023
Journal Archives of Disease in Childhood
Print ISSN 0003-9888
Electronic ISSN 1468-2044
Publisher BMJ Publishing Group
Peer Reviewed Peer Reviewed
Volume 109
Article Number 46-51
DOI https://doi.org/10.1136/archdischild-2023-325637
Keywords epidemiology, adolescent health, child health, child psychiatry, primary health care
Public URL https://nottingham-repository.worktribe.com/output/25810021
Publisher URL https://adc.bmj.com/content/early/2023/10/22/archdischild-2023-325637

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