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- Title
Amphetamine-Related Emergency Department Visits in Ontario, Canada, 2003-2020.
- Authors
Crispo, James A.G.; Liu, Lisa; Bach, Paxton; Ansell, Dominique R.; Sivapathasundaram, Branavan; Nguyen, Francis; Kurdyak, Paul; Seitz, Dallas P.; Conlon, Michael; Cragg, Jacquelyn J.
- Abstract
Objectives: Despite unregulated amphetamine use increasing, there are limited data on related emergency department (ED) visits in Canada. Our primary objective was to examine trends in amphetamine-related ED visits over time in Ontario, including by age and sex. Secondary objectives were to examine whether patient characteristics were associated with ED revisit within 6 months. Methods: Using administrative claims and census data, we calculated annual patient- and encounter-based rates of amphetamine-related ED visits from 2003 to 2020 among individuals 18+ years of age. We also performed a retrospective cohort study of individuals with amphetamine-related ED visits between 2019 and 2020 to determine whether select factors were associated with ED revisit within 6 months. Multivariable logistic regression modelling was used to measure associations. Results: The population-based rate of amphetamine-related ED visits increased nearly 15-fold between 2003 (1.9/100,000 Ontarians) and 2020 (27.9/100,000 Ontarians). Seventy-five percent of individuals returned to the ED for any reason within 6 months. Psychosis and use of other substances were both independently associated with ED revisit for any reason within 6 months (psychosis: AOR = 1.54, 95% CI = 1.30–1.83; other substances: AOR = 1.84, 95% CI = 1.57–2.15), whereas having a primary care physician was negatively associated with ED revisit (AOR = 0.77, 95% CI = 0.60–0.98). Conclusions: Increasing rates of amphetamine-related ED visits in Ontario are cause for concern. Diagnoses of psychosis and the use of other substances may serve to identify individuals who are most likely to benefit from both primary and substance-specific care.
- Subjects
ONTARIO; HOSPITAL emergency services; LOGISTIC regression analysis; REGRESSION analysis; PRIMARY care; PHYSICIANS
- Publication
Canadian Journal of Psychiatry, 2023, Vol 68, Issue 11, p838
- ISSN
0706-7437
- Publication type
Article
- DOI
10.1177/07067437231158933