Changes in Incident Schizophrenia Diagnoses Associated With Cannabis Use Disorder After Cannabis Legalization
In this cohort study of individuals aged 14 to 65 years in Ontario, Canada, the proportion of incident cases of schizophrenia associated with CUD almost tripled during a period of substantial liberalization of cannabis policy. Ongoing research is indicated to understand the long-term associations of cannabis policy with the prevalence of psychotic disorders.
Authors
- Michael Pugliese (ORCID: https://orcid.org/0000-0003-2794-1436)
- Douglas G. Manuel (ORCID: https://orcid.org/0000-0003-0912-0845)
- Peter Tanuseputro (ORCID: https://orcid.org/0000-0002-4409-0795)
- Jess G. Fiedorowicz (ORCID: https://orcid.org/0000-0003-2057-4071)
- Daniel T. Myran (ORCID: https://orcid.org/0000-0002-8038-300X)
- Yaron Finkelstein (ORCID: https://orcid.org/0000-0002-0947-3571)
- Monica Taljaard (ORCID: https://orcid.org/0000-0002-3978-8961)
- Kelly K. Anderson (ORCID: https://orcid.org/0000-0001-9843-404X)
- Marco Solmi (ORCID: https://orcid.org/0000-0003-4877-7233)
- Colleen Webber (ORCID: https://orcid.org/0000-0001-9193-5386)
- Lyndsay D. Harrison
Institutions
- Western University (CA)
- University of Ottawa (CA)
- University of Toronto (CA)
- Ottawa Hospital (CA)
- Hospital for Sick Children (CA)
- Bruyère (CA)
- Ottawa Hospital Research Institute (CA)
- Charité - Universitätsmedizin Berlin (DE)
Publication Details
- Journal
- JAMA Network Open
- Published
- 2025-02-04
- DOI
- https://doi.org/10.1001/jamanetworkopen.2024.57868
- Citations
- 37
- Primary Topic
- Cannabis and Cannabinoid Research
- Type
- article
- Field-Weighted Citation Impact
- 51.60
Funders
- Ontario Ministry of Health and Long-Term Care
- Canadian Institutes of Health Research