{"id":16562,"date":"2023-08-08T11:00:00","date_gmt":"2023-08-08T15:00:00","guid":{"rendered":"https:\/\/www.ices.on.ca\/?post_type=journal_article&#038;p=16562"},"modified":"2023-08-09T08:50:32","modified_gmt":"2023-08-09T12:50:32","slug":"self-harm-events-and-suicide-deaths-among-autistic-individuals-in-ontario-canada","status":"publish","type":"journal_article","link":"https:\/\/www.ices.on.ca\/fr\/publications\/journal-articles\/self-harm-events-and-suicide-deaths-among-autistic-individuals-in-ontario-canada\/","title":{"rendered":"Self-harm events and suicide deaths among autistic individuals in Ontario, Canada"},"content":{"rendered":"<p><strong>Importance <\/strong>\u2014 Reasons for elevated suicide risks among autistic people are unclear, with insufficient population-based research on sex-specific patterns to inform tailored prevention and intervention.<\/p>\n<p><strong>Objectives<\/strong> \u2014 To examine sex-stratified rates of self-harm events and suicide death among autistic individuals compared with nonautistic individuals, as well as the associated sociodemographic and clinical risk factors.<\/p>\n<p><strong>Design, Setting, and Participants<\/strong> \u2014 This population-based matched-cohort study using linked health administrative databases in Ontario, Canada included all individuals with physician-recorded autism diagnoses from April 1, 1988, to March 31, 2018, each matched on age and sex to 4 nonautistic individuals from the general population. Self-harm events resulting in emergency healthcare from April 1, 2005, to December 31, 2020, were examined for one cohort, and death by suicide and other causes from April 1, 1993, to December 31, 2018, were examined for another cohort. Statistical analyses were conducted between October 2021 and June 2023.<\/p>\n<p><strong>Exposure<\/strong> \u2014 Physician-recorded autism diagnoses from 1988 to 2018 from health administrative databases.<\/p>\n<p><strong>Main Outcomes and Measures<\/strong> \u2014 Autistic and nonautistic individuals who were sex stratified a priori were compared using Andersen-Gill recurrent event models on self-harm events, and cause-specific competing risk models on death by suicide or other causes. Neighborhood-level income and rurality indices, and individual-level broad diagnostic categories of intellectual disabilities, mood and anxiety disorders, schizophrenia spectrum disorders, substance use disorders, and personality disorders were covariates.<\/p>\n<p><strong>Results<\/strong> \u2014 For self-harm events (cohort, 379\u202f630 individuals; median age at maximum follow-up, 20 years [IQR, 15-28 years]; median age of first autism diagnosis claim for autistic individuals, 9 years [IQR, 4-15 years]; 19\u202f800 autistic females, 56\u202f126 autistic males 79\u202f200 nonautistic females, and 224\u202f504 nonautistic males), among both sexes, autism diagnoses had independent associations with self-harm events (females: relative rate, 1.83; 95% CI, 1.61-2.08; males: relative rate, 1.47; 95% CI, 1.28-1.69) after accounting for income, rurality, intellectual disabilities, and psychiatric diagnoses. For suicide death (cohort, 334\u202f690 individuals; median age at maximum follow-up, 19 years [IQR, 14-27 years]; median age of first autism diagnosis claim for autistic individuals, 10 years [IQR, 5-16 years]; 17\u202f982 autistic females, 48\u202f956 autistic males, 71\u202f928 nonautistic females, 195\u202f824 nonautistic males), there was a significantly higher crude hazard ratio among autistic females (1.98; 95% CI, 1.11-3.56) and a nonsignificantly higher crude hazard ratio among autistic males (1.34; 95% CI, 0.99-1.82); the increased risks were associated with psychiatric diagnoses.<\/p>\n<p><strong>Conclusions and Relevance<\/strong> \u2014 This cohort study suggests that autistic individuals experienced increased risks of self-harm events and suicide death. Psychiatric diagnoses were significantly associated with the increased risks among both sexes, especially for suicide death, and in partially sex-unique ways. Autism-tailored and autism-informed clinical and social support to reduce suicide risks should consider multifactorial mechanisms, with a particular focus on the prevention and timely treatment of psychiatric illnesses.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Importance \u2014 Reasons for elevated suicide risks among autistic people are unclear, with insufficient population-based research on sex-specific patterns to inform tailored prevention and intervention. Objectives \u2014 To examine sex-stratified rates of self-harm events and suicide death among autistic individuals compared with nonautistic individuals, as well as the associated sociodemographic and clinical risk factors. Design, [&hellip;]<\/p>\n","protected":false},"template":"","migration-helper-automated":[],"migration-manual":[],"topic":[34],"migration-helper-qa-sample-set":[],"class_list":["post-16562","journal_article","type-journal_article","status-publish","hentry","topic-mental-health-and-addictions"],"acf":{"citation":"Lai MC, Saunders NR, Huang A, Artani A, Wilton AS, Zaheer J, Ameis SH, Brown HK, Lunsky Y. <em>JAMA Netw Open<\/em>. 2023; 6(8):e2327415. Epub 2023 Aug 8.","source_url":"https:\/\/doi.org\/10.1001\/jamanetworkopen.2023.27415","ices_scientist":[1348,1296,1164],"site":[6733],"research_program":[6744],"news_release":[16559],"journal_article":"","atlas":"","research_report":"","infographic":[16563],"video":"","downloads":null,"links":null,"sitecore_item_id":"","sitecore_item_name":"","sitecore_field_values":"","previous_url":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ICES | Self-harm events and suicide deaths among autistic individuals in Ontario, Canada<\/title>\n<meta name=\"description\" content=\"Importance \u2014 Reasons for elevated suicide risks among autistic people are unclear, with insufficient population-based research on sex-specific patterns to\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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