Cannabis-related emergency department visits by youths and their outcomes in Ontario: a trend analysis

Abstract Background: Cannabis-related emergency department visits can be an entry point for youths to mental health and substance use care systems. We aimed to examine trends in cannabis-related emergency department visits as a function of youths’ age and sex. Methods: Using administrative data, we examined all visits to emergency departments in Ontario, Canada, from 2003 to 2017, by youth aged 10–24 years (grouped as 10–13, 14–18 and 19–24 yr) to determine trends in cannabis-related emergency department visits. Cannabis-related visits were