Legalization of recreational cannabis in Ontario included the legalization of flower and herbs (Phase 1, October 2018), and was followed by the deregulation of cannabis retailers and sales of edibles (Phase 2, February 2020). Research on the impact of cannabis legalization on acute care utilization is nascet; no research has investigated potential age, gender, and geographically vulnerable subgroup effects. Residents living in Northern Ontario not only have higher levels of substance use problems, but also have inadequate access to primary healthcare. Our study investigated the impact of Ontario’s recreational cannabis policy (including Phase 1 and 2) on cannabis-attributable emergency department (ED) visits, and estimated the impact separately for different age and gender groups, with additional analyses focused on Northern Ontarians. We created a cohort of adults (18 and over) eligible for provincial universal health insurance with continuous coverage from 2015–2021 (n = 14,900,820). An interrupted time series was used to examine the immediate impact and month-to-month changes in cannabis-related ED visits associated with Phase 1 & 2 for each subgroup. While Northern Ontario has higher rates of cannabis-related ED visits, both Northern and Southern Ontario show similar patterns of changes. Phase 1 was associated with significant increases in adults 25–64, with the strongest increases seen in women 45–64. Month-to-month trends were flattened in most groups compared to pre-legalization. Phase 2 was associated with significant immediate increases for adults aged 18–44 in both genders, but the increases were larger in women than men. No significant month-to-month changes were detected in this period. While current preventive efforts are largely focused on reducing cannabis-related harms in youths and younger adults, our results show that adults 25–64, particularly women, have been significantly impacted by cannabis policies. Further research on gender-specific cannabis dosage and targeted interventions for adult women should be investigated. Legalization did not appear to have a differential impact on Northern versus Southern Ontario, but higher rates of ED visits in the North should be addressed.

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In this paper, we provide an analysis of the concept of recovery from substance use. We performed a literature search in CINAHL Plus, PsycINFO, MEDLINE, and Embase using key terms that focused on the concept of recovery from substance use. We also conducted a grey literature search and included select resources. Inclusive years for the search ranged from January 1, 2000 to March 10, 2022. Records were screened for eligibility by two independent reviewers; data were extracted by one reviewer and confirmed by a second. A total of 22 literature sources were included. Identified core attributes of recovery include: (i) recovery as a process, (ii) recovery as more than managing substance use, (iii) recovery as life improvements, and (iv) recovery as a person‐centred, individual concept. Antecedents, consequences, and empirical referents are identified, and model and contrary cases are presented. We propose the following definition for recovery: Recovery from substance use is defined by the affected individual, who sets goals and objectives for life improvements that include managing their substance use, but this is not the sole focus. Recovery is a person‐centred, individualized process that can be measured by referents that suit the individual's own goals and objectives. What may constitute “recovery” and “recovered” requires definition by each individual.