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Amphetamine-Related Emergency Department Visits in Ontario, Canada, 2003-2020.


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.

SUBMITTER: Crispo JAG 

PROVIDER: S-EPMC10590093 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature

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Publications

Amphetamine-Related Emergency Department Visits in Ontario, Canada, 2003-2020.

Crispo James A G JAG   Liu Lisa L   Bach Paxton P   Ansell Dominique R DR   Sivapathasundaram Branavan B   Nguyen Francis F   Kurdyak Paul P   Seitz Dallas P DP   Conlon Michael M   Cragg Jacquelyn J JJ  

Canadian journal of psychiatry. Revue canadienne de psychiatrie 20230308 11


<h4>Objectives</h4>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.<h4>Methods</h4>Using administrative claims and census data, we calculated annual patient- and encounter-based ra  ...[more]

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