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Harrison LD, Dumicho AY, Eddeen AB, Tanuseputro P, Kendall CE, Fiedorowicz JG, Rosic T, Fernando SM, McNaughton CD, Corace K, Kurdyak P, Beckerleg W, Webber C, Gardner W, Sood M, Myran DT. Mortality in adolescents and young adults following a first presentation to the emergency department for alcohol. Acad Emerg Med 2024; 31:220-229. [PMID: 38097531 DOI: 10.1111/acem.14843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 11/09/2023] [Accepted: 11/26/2023] [Indexed: 02/27/2024]
Abstract
BACKGROUND AND METHODS We conducted a population-based, retrospective cohort study of first-time emergency department (ED) visits in adolescents and young adults (AYA) due to alcohol and compared mortality to AYA with nonalcohol ED visits between 2009 and 2015 using standardized all-cause mortality ratios (age, sex, income, and rurality). We described the cause of death for AYA and examined the association between clinical factors and mortality rates in the alcohol cohort using proportional hazard models. RESULTS A total of 71,776 AYA had a first-time ED visit due to alcohol (56.1% male, mean age 20.7 years) between 2009 and 2015, representing 3.3% of the 2,166,838 AYA with an ED visit in this time period. At 1 year, there were 2396 deaths, 248 (10.3%) following an ED visit related to alcohol. First-time alcohol ED visits were associated with a threefold higher risk in mortality at 1 year (0.35% vs. 0.10%, adjusted hazard ratio [aHR] 3.07, 95% confidence interval [CI] 2.69-3.51). Mortality was associated with age 25-29 years (aHR 3.88, 95% CI 2.56-5.86), being male (aHR 1.98, 95% CI 1.49-2.62), having a history of mental health or substance use (aHR 3.22, 95% CI 1.64-6.32), cause of visit being withdrawal/dependence (aHR 2.81, 95% CI 1.96-4.02), and having recurrent ED visits (aHR 1.97, 95% CI 1.27-3.05). Trauma (42.7%), followed by poisonings from drugs other than opioids (38.3%), and alcohol (28.6%) were the most common contributing causes of death. CONCLUSION Incident ED visits due to alcohol in AYA are associated with a high risk of 1-year mortality, especially in young adults, those with concurrent mental health or substance use disorders, and those with a more severe initial presentation. These findings may help inform the need and urgency for follow-up care in this population.
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Affiliation(s)
- Lyndsay D Harrison
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Bruyère Research Institute, Ottawa, Ontario, Canada
| | - Asnake Y Dumicho
- ICES uOttawa, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Anan Bader Eddeen
- ICES uOttawa, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Peter Tanuseputro
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Bruyère Research Institute, Ottawa, Ontario, Canada
- ICES uOttawa, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Department of Family Medicine, University of Ottawa, Ontario, Canada
- Department of Medicine, The Ottawa Hospital, Ottawa, Ontario, Canada
- Department of Primary Care, University of Ottawa, Ottawa, Ontario, Canada
| | - Claire E Kendall
- Bruyère Research Institute, Ottawa, Ontario, Canada
- Department of Family Medicine, University of Ottawa, Ontario, Canada
- Lamont Primary Health Care Research Centre, Riverside Campus Family Health Team, Ottawa, Ontario, Canada
| | - Jess G Fiedorowicz
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Department of Psychiatry, University of Ottawa, Ottawa, Ontario, Canada
| | - Tea Rosic
- Department of Psychiatry, University of Ottawa, Ottawa, Ontario, Canada
- Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
| | - Shannon M Fernando
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Department of Critical Care, Lakeridge Health Corporation, Oshawa, Ontario, Canada
| | - Candace D McNaughton
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- Sunnybrook Research Institute, Toronto, Ontario, Canada
- ICES Central, Toronto, Ontario, Canada
| | - Kim Corace
- Department of Psychiatry, University of Ottawa, Ottawa, Ontario, Canada
| | - Paul Kurdyak
- ICES Central, Toronto, Ontario, Canada
- Centre for Addiction and Mental Health, Toronto, Ontario, Canada
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Weiwei Beckerleg
- ICES uOttawa, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Department of Medicine, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - Colleen Webber
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Bruyère Research Institute, Ottawa, Ontario, Canada
- ICES uOttawa, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - William Gardner
- ICES uOttawa, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Department of Psychiatry, University of Ottawa, Ottawa, Ontario, Canada
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
- CHEO Research Institute, Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
| | - Manish Sood
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- ICES uOttawa, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Department of Medicine, The Ottawa Hospital, Ottawa, Ontario, Canada
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
| | - Daniel Thomas Myran
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Bruyère Research Institute, Ottawa, Ontario, Canada
- ICES uOttawa, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Department of Family Medicine, University of Ottawa, Ontario, Canada
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Friesen EL, Mataruga A, Bolton J, Kurdyak P. Characterizing the clinical subgroups of individuals who present to the emergency department for alcohol-related harms in Ontario, Canada: A latent class analysis. Psychiatry Res 2024; 333:115726. [PMID: 38224632 DOI: 10.1016/j.psychres.2024.115726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 12/15/2023] [Accepted: 01/06/2024] [Indexed: 01/17/2024]
Abstract
Alcohol-related emergency department (ED) visits are common and associated with adverse clinical outcomes, including premature mortality. This population-based retrospective cohort study identified clinically distinct subgroups of individuals who experience alcohol-related ED visits and characterized differences in the risk of adverse outcomes between them. 73,658 individuals who experienced an alcohol-related ED visit in Ontario, Canada between 2017 and 2018 were identified. Latent class analysis (LCA) revealed five clinically distinct subgroups within the overall cohort. These subgroups followed a severity gradient from low-frequency service use for acute intoxication to high-frequency service use for alcohol use disorder (AUD) and related comorbidities. Relative to those presenting for acute intoxication, those presenting for AUD and comorbidities had a much higher risk of hospital admission (adjusted odds ratio [aOR]: 8.26, 95 % confidence interval [CI]: 7.81-8.75) and post-discharge mortality (adjusted hazard ratio [aHR]: 3.07, 95 % CI: 2.81-3.37). There was a subgroup of individuals with a history of high frequency alcohol-related health service use who were at the highest risk of experiencing another alcohol-related ED visit after the index event (aHR: 4.76, 95 % CI: 4.55-4.99). Individuals who experience alcohol-related ED visits are not a homogenous population, but a constellation of subgroups with different clinical characteristics and risk of adverse outcomes.
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Affiliation(s)
- Erik Loewen Friesen
- Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Centre for Addiction and Mental Health (CAMH), Toronto, Ontario, Canada; ICES, Toronto, Ontario, Canada; Manitoba Centre for Health Policy, Winnipeg, Manitoba, Canada.
| | | | - James Bolton
- Manitoba Centre for Health Policy, Winnipeg, Manitoba, Canada; Department of Psychiatry, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Paul Kurdyak
- Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Centre for Addiction and Mental Health (CAMH), Toronto, Ontario, Canada; ICES, Toronto, Ontario, Canada
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Friesen EL, Mataruga A, Nickel N, Kurdyak P, Bolton JM. Outcomes in Clinical Subgroups of Patients With Alcohol-Related Hospitalizations. JAMA Netw Open 2024; 7:e2353971. [PMID: 38294814 PMCID: PMC10831574 DOI: 10.1001/jamanetworkopen.2023.53971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 12/08/2023] [Indexed: 02/01/2024] Open
Abstract
Importance Alcohol-related hospitalizations are common and associated with significant cost to the health care system. We have a limited understanding of the characteristics of individuals who experience alcohol-related hospitalizations, which limits our capacity to prioritize those at the highest risk of postdischarge harm. Objective To identify and characterize the clinical subgroups of individuals who are hospitalized for alcohol-related harms. Design, Setting, and Participants This cohort study used latent class analysis (LCA) to identify clinical subgroups of individuals experiencing alcohol-related hospitalizations in 2 provinces in Canada. All individuals between ages 10 and 105 years who were hospitalized for an alcohol-related harm between January 2017 and December 2018 (ie, the index hospitalization) were eligible. Data were analyzed between June 2023 and August 2023. Exposures The exposure of interest was the clinical subgroup that an individual belonged to. These subgroups were identified using an LCA based on (1) the characteristics of the index hospitalization and (2) the history of alcohol-related health service use. Main Outcomes and Measures In-hospital mortality, alcohol-related hospital readmission, and all-cause mortality in the year following discharge from the index hospitalization. The association between subgroup membership and the risk of in-hospital and postdischarge outcomes was evaluated using multivariable regression. Results A total of 34 043 individuals were included in analysis, 4753 from Manitoba (median [IQR] age, 49 [40-58] years; 1786 female [37.6%]) and 29 290 from Ontario (median [IQR] age, 57 [45-67] years; 8527 female [29.1%]). Seven subgroups were identified following a gradient from low-frequency service use for acute intoxication to high-frequency service use for severe alcohol use disorder and liver disease. In Ontario, there were 4431 individuals in the liver disease subgroup representing 15.5% of the cohort who were at the highest risk of 1-year mortality (1382 [31.2%]) relative to the acute intoxication subgroup (42 [4.0%]) (adjusted hazard ratio [aHR], 3.83; 95% CI, 2.80-5.24). There was also a small subgroup (10.6%) of individuals with high-frequency alcohol-related health service use who had a much higher hazard of readmission following the index hospitalization (1-year readmission: 703 of 1526 [46.1%] vs 104 of 1058 [9.8%] in the acute intoxication subgroup; aHR, 5.09; 95% CI, 4.11-6.31). Conclusions and Relevance In this population-based cohort study of individuals experiencing alcohol-related hospitalizations, we identified several small, clinically distinct subgroups that were at a disproportionately high risk of readmission and mortality. These groups could merit prioritization in strategies aimed at reducing the risk of adverse outcomes following alcohol-related hospitalizations.
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Affiliation(s)
- Erik L. Friesen
- Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Centre for Addiction and Mental Health, Toronto, Ontario, Canada
- Mental Health and Addictions Research Program, ICES Central, Toronto, Ontario, Canada
- Manitoba Centre for Health Policy, Winnipeg, Manitoba, Canada
| | - Andrea Mataruga
- Mental Health and Addictions Research Program, ICES Central, Toronto, Ontario, Canada
| | - Nathan Nickel
- Manitoba Centre for Health Policy, Winnipeg, Manitoba, Canada
- Department of Community Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Paul Kurdyak
- Centre for Addiction and Mental Health, Toronto, Ontario, Canada
- Mental Health and Addictions Research Program, ICES Central, Toronto, Ontario, Canada
- Department of Psychiatry, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - James M. Bolton
- Manitoba Centre for Health Policy, Winnipeg, Manitoba, Canada
- Department of Psychiatry, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
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