{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T17:20:58Z","timestamp":1778088058602,"version":"3.51.4"},"reference-count":34,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2025,2,12]],"date-time":"2025-02-12T00:00:00Z","timestamp":1739318400000},"content-version":"vor","delay-in-days":11,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"DOI":"10.13039\/100013873","name":"Government of Ontario","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100013873","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Int J Geriat Psychiatry"],"published-print":{"date-parts":[[2025,2]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:sec><jats:title>Objectives<\/jats:title><jats:p>There are more than 66,000 Ontario adults living with intellectual and developmental disabilities (IDD). While the risk of dementia is well established among those with Down Syndrome (DS), there is limited research in persons with IDD excluding DS (Non\u2010DS IDD). This study aimed to compare the incidence and prevalence of dementia in Ontario adults with and without IDD over time and by demographic information.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Administrative data were used to calculate and compare the annual age\u2010 and sex\u2010adjusted cumulative incidence and period prevalence of dementia from fiscal years 2011\/12 to 2020\/21 in three cohorts: (1) Non\u2010DS IDD, (2) DS, and (3) No IDD.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Compared to persons without IDD, cumulative incidence of dementia was on average 4.27 and 5.33 times higher in persons with Non\u2010DS IDD and DS respectively and period prevalence of dementia was on average 4.87 and 5.93 times higher in persons with Non\u2010DS IDD and DS respectively.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Given the increased rates of dementia within the IDD population, it is imperative that early dementia screening take place, appropriate health and social services are implemented and more actions are taken to delay the onset of dementia, while considering the needs of this population.<\/jats:p><\/jats:sec>","DOI":"10.1002\/gps.70050","type":"journal-article","created":{"date-parts":[[2025,2,13]],"date-time":"2025-02-13T02:03:46Z","timestamp":1739412226000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["The Incidence and Prevalence of Dementia Among Ontario Adults With and Without Intellectual and Developmental Disabilities"],"prefix":"10.1002","volume":"40","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-0386-281X","authenticated-orcid":false,"given":"Prachi","family":"Patel","sequence":"first","affiliation":[{"name":"Ontario Tech University  Oshawa Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Winnie","family":"Sun","sequence":"additional","affiliation":[{"name":"Ontario Tech University  Oshawa Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andrea","family":"Mataruga","sequence":"additional","affiliation":[{"name":"ICES  Toronto Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kinwah","family":"Fung","sequence":"additional","affiliation":[{"name":"ICES  Toronto Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Robert","family":"Balogh","sequence":"additional","affiliation":[{"name":"Ontario Tech University  Oshawa Canada"},{"name":"ICES  Toronto Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,2,12]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1037\/e506482014-001"},{"key":"e_1_2_10_3_1","unstructured":"Government of Ontario Services and Supports to Promote the Social Inclusion of Persons With Developmental Disabilities Act 2008 S.O. 2008 C. 14 https:\/\/www.ontario.ca\/laws\/statute\/08s14."},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1352\/1934\u20109556\u201057.5.357"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/gps.5258"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1192\/bjp.bp.106.028845"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1741\u20101130.2010.00253.x"},{"key":"e_1_2_10_8_1","volume-title":"Dementia","author":"World Health Organization"},{"key":"e_1_2_10_9_1","volume-title":"Navigating the Path Forward for Dementia in Canada","author":"Alzheimer Society of Canada"},{"key":"e_1_2_10_10_1","volume-title":"Global Status Report on the Public Health Response to Dementia","author":"World Health Organization","year":"2021"},{"key":"e_1_2_10_11_1","unstructured":"Public Health Agency of Canada Dementia in Canada Including Alzheimer\u2019s Disease: Highlights From the Canadian Chronic Disease Surveillance System(2017) https:\/\/www.canada.ca\/en\/public\u2010health\/services\/publications\/diseases\u2010conditions\/dementia\u2010highlights\u2010canadian\u2010chronic\u2010disease\u2010surveillance.html."},{"key":"e_1_2_10_12_1","unstructured":"ChambersL. 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