ArticleJournal of autism and developmental disorders2026
Trends in Self-Reported Autism Among Adults in England: Analysis of a Repeated Cross-Sectional Patient Survey Series of 5,999,433 Adults.
Article in Journal of autism and developmental disorders, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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Authors and funding
6 authors.
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Abstract
purposeWhether autism is increasing is a subject of growing interest to researchers, health and social care professionals, policymakers, and the general public. We examined trends over time in the proportion of adults in England self-reporting as autistic, utilising data from an annual repeated cross-sectional survey series of adults registered with a General Practice in England.
methodsWe report annual unweighted frequencies and weighted percentages (with 95% confidence intervals) for survey respondents self-reporting autism for 2018 to 2025, with equivalent data for self-reporting learning disability and a mental health condition. We additionally report the percentage change for 2019 to 2025, compared to a 2018 survey year baseline. Disaggregated data was reported according to age group, gender identity, and ethnicity.
resultsThe weighted percentage of adults self-reporting as autistic has increased from 0.9% (95% CI 0.9-0.9) in 2018 to 2.6% (95% CI 2.5-2.7) in 2025, representing a 188.9% increase over a 7-year period. More modest percentage increases over this same time period were observed for learning disability (26.7%) and mental health condition (51.6%). The majority of the increase in adults self-reporting as autistic took place between the 2021 and 2025 survey years, over which time there was a 136.4% increase.
conclusionThere has been a substantial increase in adults self-reporting as autistic in England over a relatively short period of time, with an absence of similar increases in self-reporting as having a learning disability or a mental health condition. Further research is required to better understand the factors underpinning this change.
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Registered trials
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