{"id":21159,"date":"2025-02-06T09:12:05","date_gmt":"2025-02-06T14:12:05","guid":{"rendered":"https:\/\/www.ices.on.ca\/?post_type=journal_article&#038;p=21159"},"modified":"2025-02-13T12:16:20","modified_gmt":"2025-02-13T17:16:20","slug":"cannabis-use-disorder-emergency-department-visits-and-hospitalizations-and-5-year-mortality","status":"publish","type":"journal_article","link":"https:\/\/www.ices.on.ca\/fr\/publications\/journal-articles\/cannabis-use-disorder-emergency-department-visits-and-hospitalizations-and-5-year-mortality\/","title":{"rendered":"Cannabis use disorder emergency department visits and hospitalizations and 5-year mortality"},"content":{"rendered":"<p><strong>Importance<\/strong> \u2014 Cannabis use disorders (CUD) are associated with adverse health effects, including mental disorders and motor vehicle collision-related injuries. However, little is known about whether CUDs are associated with increased mortality risk.<\/p>\n<p><strong>Objective <\/strong>\u2014 To examine whether individuals receiving incident hospital-based care (an emergency department visit or hospitalization) for a CUD is associated with increased risk of death.<\/p>\n<p><strong>Design, setting, and participants <\/strong>\u2014 This population-based retrospective cohort study included all individuals aged 15 to 105 years living in Ontario, Canada, between 2006 and 2021 (n\u2009=\u200911\u202f622\u202f571 individuals). Overall and cause-specific mortality were compared between individuals with incident hospital-based CUD care and age- and sex-matched members of the general population or individuals with hospital-based care for other substance use disorders using cause-specific hazard models adjusted for comorbid mental health, substance use, and chronic health conditions. Statistical analysis was performed from September to December 2024.<\/p>\n<p><strong>Exposure <\/strong>\u2014 Incident hospital-based CUD care.<\/p>\n<p><strong>Main outcomes and measures<\/strong> \u2014 Overall and cause-specific mortality identified using vital statistics.<\/p>\n<p><strong>Results <\/strong>\u2014 The matched analysis included 527\u202f972 individuals (mean [SD] age, 29.9 [13.6] years; 330\u202f034 [62.5%] female) with a median (IQR) follow-up of 5 (3-9) years; 106\u202f994 had incident CUD. Within 5 years of incident hospital-based CUD care, 3770 individuals (3.5%) died compared with 3770 (0.6%) of matched general population members. After adjusting for comorbid conditions, individuals with incident hospital-based CUD care were at increased risk of death relative to the general population (adjusted hazard ratio [aHR], 2.79 [95% CI, 2.62-2.97]). Individuals with hospital-based CUD care were at increased risk of all investigated types of death and particularly elevated risk of death by suicide (aHR, 9.70 [95% CI, 6.04-15.57]), trauma (aHR, 4.55 [95% CI, 3.55-5.82]), opioid poisoning (aHR, 5.03 [95% CI, 2.86-8.84]), other drug poisonings (aHR, 4.56 [95% CI, 3.11-6.68]), and lung cancer (aHR, 3.81 [95% CI, 2.39-6.07]) relative to the general population. Compared with an individual with hospital-based care for CUD, individuals with hospital-based care for alcohol (aHR, 1.30 [95% CI, 1.26-1.34]), stimulants (aHR, 1.69 [95% CI, 1.62-1.75]), and opioids (aHR, 2.19 [95% CI, 2.10-2.27]) were at relatively increased risk of death within 5 years.<\/p>\n<p><strong>Conclusions and relevance<\/strong> \u2014 In this cohort study of all residents of Ontario, Canada, individuals with incident hospital-based CUD care were at markedly increased risk of death compared with the general population. These findings suggest important clinical and policy implications, given global trends toward cannabis legalization and market commercialization accompanied by increasing cannabis use and CUDs.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Importance \u2014 Cannabis use disorders (CUD) are associated with adverse health effects, including mental disorders and motor vehicle collision-related injuries. However, little is known about whether CUDs are associated with increased mortality risk. Objective \u2014 To examine whether individuals receiving incident hospital-based care (an emergency department visit or hospitalization) for a CUD is associated with [&hellip;]<\/p>\n","protected":false},"template":"","migration-helper-automated":[],"migration-manual":[],"topic":[24,34,56],"migration-helper-qa-sample-set":[],"class_list":["post-21159","journal_article","type-journal_article","status-publish","hentry","topic-acute-and-emergency-services","topic-mental-health-and-addictions","topic-pharmacoepidemiology-and-drug-safety"],"acf":{"citation":"Myran DT, Pugliese M, McDonald AJ, Xiao J, Fischer B, Finkelstein Y, Tanuseputro P, Firth J, Pakpour A, Hsu CW, Chang WC, Solmi M. <em>JAMA Netw Open<\/em>. 2025; 8(2):e2457852.","source_url":"https:\/\/doi.org\/10.1001\/jamanetworkopen.2024.57852","ices_scientist":[17551,1229],"site":[6734],"research_program":[6740],"news_release":"","journal_article":"","atlas":"","research_report":"","infographic":"","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 v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ICES | Cannabis use disorder emergency department visits and hospitalizations and 5-year mortality<\/title>\n<meta name=\"description\" content=\"Importance \u2014 Cannabis use disorders (CUD) are associated with adverse health effects, including mental disorders and motor vehicle collision-related\" \/>\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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