{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T15:29:23Z","timestamp":1789745363970,"version":"4.0.1"},"reference-count":66,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2022,5,28]],"date-time":"2022-05-28T00:00:00Z","timestamp":1653696000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Substance Use and Addiction Program of Health Canada","award":["8400886"],"award-info":[{"award-number":["8400886"]}]},{"name":"Substance Use and Addiction Program of Health Canada","award":["8400993"],"award-info":[{"award-number":["8400993"]}]},{"name":"Qu\u00e9bec Minist\u00e8re de la sant\u00e9 et des services sociaux (Ministry of Health and Social Services)","award":["8400886"],"award-info":[{"award-number":["8400886"]}]},{"name":"Qu\u00e9bec Minist\u00e8re de la sant\u00e9 et des services sociaux (Ministry of Health and Social Services)","award":["8400993"],"award-info":[{"award-number":["8400993"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>Few studies have assessed the overall impact of outpatient service use on acute care use, comparing patients with different types of substance-related disorders (SRD) and multimorbidity. This study aimed to identify sociodemographic and clinical characteristics and outpatient service use that predicted both frequent ED use (3+ visits\/year) and hospitalization among patients with SRD. Data emanated from 14 Quebec (Canada) addiction treatment centers. Quebec administrative health databases were analyzed for a cohort of 17,819 patients over a 7-year period. Multivariable logistic regression models were produced. Patients with polysubstance-related disorders, co-occurring SRD-mental disorders, severe chronic physical illnesses, and suicidal behaviors were at highest risk of both frequent ED use and hospitalization. Having a history of homelessness, residing in rural areas, and using more outpatient services also increased the risk of acute care use, whereas high continuity of physician care protected against acute care use. Serious health problems were the main predictor for increased risk of both frequent ED use and hospitalization among patients with SRD, whereas high continuity of care was a protective factor. Improved quality of care, motivational, outreach and crisis interventions, and more integrated and collaborative care are suggested for reducing acute care use.<\/jats:p>","DOI":"10.3390\/ijerph19116607","type":"journal-article","created":{"date-parts":[[2022,5,29]],"date-time":"2022-05-29T08:50:51Z","timestamp":1653814251000},"page":"6607","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Predictors of Frequent Emergency Department Use and Hospitalization among Patients with Substance-Related Disorders Recruited in Addiction Treatment Centers"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4743-8611","authenticated-orcid":false,"given":"Marie-Jos\u00e9e","family":"Fleury","sequence":"first","affiliation":[{"name":"Douglas Hospital Research Centre, Douglas Mental Health University Institute, 6875 LaSalle Blvd, Montreal, QC H4H 1R3, Canada"},{"name":"Department of Psychiatry, McGill University, 1033, Pine Avenue West, Montreal, QC H3A 1A1, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3830-5649","authenticated-orcid":false,"given":"Zhirong","family":"Cao","sequence":"additional","affiliation":[{"name":"Douglas Hospital Research Centre, Douglas Mental Health University Institute, 6875 LaSalle Blvd, Montreal, QC H4H 1R3, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2445-0060","authenticated-orcid":false,"given":"Guy","family":"Grenier","sequence":"additional","affiliation":[{"name":"Douglas Hospital Research Centre, Douglas Mental Health University Institute, 6875 LaSalle Blvd, Montreal, QC H4H 1R3, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4345-9463","authenticated-orcid":false,"given":"Christophe","family":"Hu\u1ef3nh","sequence":"additional","affiliation":[{"name":"Centre Int\u00e9gr\u00e9 Universitaire de Sant\u00e9 et Des Services Sociaux du Centre-Sud-de-l\u2019\u00cele-de-Montr\u00e9al, Institut Universitaire sur les D\u00e9pendances, 950 Louvain Est, Montreal, QC H2M 2E8, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,5,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"APA (2013). 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