The Toronto Overdose Information System is a surveillance and monitoring system that allows for systematic and timely monitoring of trends in overdose-related outcomes in Toronto, with a current focus on opioids. Through this system, we aim to share information externally with partners and the public to increase community awareness of these trends. Additional data and indicators may be added as they become available.
For information about data sources and indicators contact the Epidemiology and Data Analytics Unit:
For information about substance use programming and the Our Health Our City Strategy, please contact the Mental Health and Substance Use Team:
The following are past reports/summaries that were previously externally available on TOIS. These can include older versions of an existing product currently available on TOIS, or spotlight reports that have been archived.