Received: 5 August 2021
Accepted: 28 September 2021
First Online: 15 October 2021
: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
: This study was conducted using de-identified administrative health data from the BC Provincial Overdose Cohort as part of the provincial response to the epidemic of drug overdose; therefore, institutional ethics approval was not required.