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Can a nation-wide e-cohort of ADHD and ASD in childhood be established using Welsh routinely available datasets?
BMJ Open, Volume: 13, Issue: 8, Start page: e071851
Swansea University Authors: Marcos del Pozo Banos , Ann John
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DOI (Published version): 10.1136/bmjopen-2023-071851
Abstract
Objectives: We investigated the feasibility and validity of establishing a nationwide e-cohort of individuals with a diagnosis of ADHD and/or ASD for future longitudinal research. Design: Individuals with a childhood diagnosis of ADHD/ASD as recorded on routinely available healthcare datasets were c...
Published in: | BMJ Open |
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ISSN: | 2044-6055 2044-6055 |
Published: |
BMJ
2023
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Online Access: |
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URI: | https://cronfa.swan.ac.uk/Record/cronfa64072 |
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Abstract: |
Objectives: We investigated the feasibility and validity of establishing a nationwide e-cohort of individuals with a diagnosis of ADHD and/or ASD for future longitudinal research. Design: Individuals with a childhood diagnosis of ADHD/ASD as recorded on routinely available healthcare datasets were compared with matched controls and a sample of directly assessed individuals with ADHD.Setting: This study utilised data from the Welsh Secure Anonymised Information Linkage (SAIL) Databank in Wales, UK. Routinely collected data from primary care, Emergency Department and hospital admissions were linked at person level.Participants: All individuals in Wales, UK born between 01/01/1991 and 31/12/2000. Individuals with a recorded diagnosis of ADHD and/or ASD by age 18 years were identified using ICD-10 and NHS Read codes and matched to three controls each and 154 individuals with ADHD recruited from an established research study.Outcome measures: Recorded service use for anxiety and depression, alcohol and drug use and self-harm including Emergency Department use in young adulthood (age 16 years to 25).Results: 7726 individuals had a recorded diagnosis of ADHD (80% male) and 5001 of ASD (79% male); 1.4% and 0.9% of the population respectively. Cox’s regression analyses showed ADHD was associated with increased risks of anxiety/depression (HR:2.36, 95% CI:2.20,2.53), self-harm (HR: 5.70, 95% CI:5.07,6.40), alcohol (HR:3.95, 95%CI:3.42,4.56), drug use (HR:5.88, 95%CI:5.08,6.80) and Emergency department service use (HR:1.36, 95%CI:1.31,1.41). Those with ASD were at increased risk of anxiety/depression (HR:2.11, 95%CI: 1.91,2.34), self-harm (HR:2.93, 95%CI: 2.45,3.50) and drug use (HR:2.21, 95%CI: 1.66,2.95) but not alcohol use. The ADHD e-cohort were similar to the directly assessed cohort.Conclusions: Our identification strategy demonstrated the feasibility of establishing a large e-cohort of those with ADHD/ASD with expected patterns of poorer early adult outcomes, demonstrating a valid method of identifying large samples for future longitudinal studies without selective attrition. |
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Keywords: |
ADHD, ASD, childhood diagnosis, Wales, SAIL Databank |
College: |
Faculty of Medicine, Health and Life Sciences |
Funders: |
Wellcome Trust Institutional Strategic Support Fund awarded by Cardiff University (Grant ref: AC1710IF04), National Centre for Mental Health (NCMH) funded by Health and Care Research Wales (Grant ref: 517191), the Wolfson Foundation. |
Issue: |
8 |
Start Page: |
e071851 |