dc.contributor.author | Zuckermann, Alexandra M.E. | |
dc.contributor.author | Battista, Katelyn V. | |
dc.contributor.author | Bélanger, Richard E. | |
dc.contributor.author | Haddad, Slim | |
dc.contributor.author | Butler, Alexandra | |
dc.contributor.author | Costello, Mary Jean | |
dc.contributor.author | Leatherdale, S.T. | |
dc.date.accessioned | 2021-05-12 15:10:45 (GMT) | |
dc.date.available | 2021-05-12 15:10:45 (GMT) | |
dc.date.issued | 2021-06 | |
dc.identifier.uri | https://doi.org/10.1016/j.pmedr.2021.101351 | |
dc.identifier.uri | http://hdl.handle.net/10012/16969 | |
dc.description.abstract | Canada legalized recreational cannabis use for adults on October 17, 2018 with decision-makers emphasising the need to reduce cannabis use among youth. We sought to characterise trends of youth cannabis use before and after cannabis legalization by relying on a quasi-experimental design evaluating cannabis use among high school students in Alberta, British Columbia, Ontario, and Québec who participated in the COMPASS prospective cohort study. Overall trends in use were examined using a large repeat cross-sectional sample (n = 102,685) at two time points before legalization (16/17 and 17/18 school years) and one after (18/19 school year). Further differential changes in use among students affected by legalization were examined using three sequential four-year longitudinal cohorts (n = 5,400) of students as they progressed through high school. Youth cannabis use remains common with ever-use increasing from 30.5% in 2016/17 to 32.4% in 2018/19. In the repeat cross-sectional sample, the odds of ever use in the year following legalization were 1.05 times those of the preceding year (p = 0.0090). In the longitudinal sample, no significant differences in trends of cannabis use over time were found between cohorts for any of the three use frequency metrics. Therefore, it appears that cannabis legalization has not yet been followed by pronounced changes on youth cannabis use. High prevalence of youth cannabis use in this sample remains a concern. These data suggest that the Cannabis Act has not yet led to the reduction in youth cannabis use envisioned in its public health approach. | en |
dc.description.sponsorship | The COMPASS study has been supported by a bridge grant from the CIHR Institute of Nutrition, Metabolism and Diabetes (INMD) through the “Obesity – Interventions to Prevent or Treat” priority funding awards (OOP-110788; awarded to SL), an operating grant from the CIHR Institute of Population and Public Health (IPPH) (MOP-114875; awarded to SL), a CIHR project grant (PJT-148562; awarded to SL), a CIHR bridge grant (PJT-149092; awarded to KP/SL), a CIHR project grant (PJT-159693; awarded to KP), a CIHR Team grant (CVP-429107; awarded to SL), a research funding arrangement with Health Canada (#1617-HQ-000012; awarded to SL) and by a CIHR-Canadian Centre on Substance Abuse (CCSA) team grant (OF7 B1-PCPEGT 410-10-9633; awarded to SL). COMPASS Québec additionally benefits from funding from the Ministère de la Santé et des Services sociaux of the province of Québec and the Direction régionale de santé publique du CIUSSS de la Capitale-Nationale. | en |
dc.language.iso | en | en |
dc.publisher | Elsevier | en |
dc.relation.ispartofseries | Preventive Medicine Reports;22 | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) | * |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | cannabis | en |
dc.subject | legalization | en |
dc.subject | youth | en |
dc.subject | Cannabis act | en |
dc.title | Trends in youth cannabis use across cannabis legalization: Data from the COMPASS prospective cohort study | en |
dc.type | Article | en |
dcterms.bibliographicCitation | Zuckermann, A. M. E., Battista, K. V., Bélanger, R. E., Haddad, S., Butler, A., Costello, M. J., & Leatherdale, S. T. (2021). Trends in youth cannabis use across cannabis legalization: Data from the COMPASS prospective cohort study. Preventive Medicine Reports, 22, 101351. https://doi.org/10.1016/j.pmedr.2021.101351 | en |
uws.contributor.affiliation1 | Faculty of Applied Health Sciences | en |
uws.contributor.affiliation2 | Public Health and Health Systems (School of) | en |
uws.typeOfResource | Text | en |
uws.peerReviewStatus | Reviewed | en |
uws.scholarLevel | Faculty | en |
uws.scholarLevel | Post-Doctorate | en |
uws.scholarLevel | Staff | en |