Evidence map›Paper›PMID 31409593›Full record

ArticleCMAJ open

Access to cannabis retail stores across Canada 6 months following legalization: a descriptive study.

Daniel T Myran, Catherine R L Brown, Peter Tanuseputro

Abstract read
In one paragraph

Article in CMAJ open. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed.

  1. Observational
  2. Article
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  13. CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2021
    Article
  14. Canada's provinces and territories should disclose cannabis data to support research.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2021
    Article
  15. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Daniel T MyranClinical Epidemiology Program (Myran, Brown, Tanuseputro), Ottawa Hospital Research Institute; School of Epidemiology and Public Health (Myran, Brown), University of Ottawa; Bruyère Research Institute (Tanuseputro); Department of Medicine (Tanuseputro), University of Ottawa, Ottawa, Ont. dmyra088@uottawa.ca.
Catherine R L BrownClinical Epidemiology Program (Myran, Brown, Tanuseputro), Ottawa Hospital Research Institute; School of Epidemiology and Public Health (Myran, Brown), University of Ottawa; Bruyère Research Institute (Tanuseputro); Department of Medicine (Tanuseputro), University of Ottawa, Ottawa, Ont.
Peter TanuseputroClinical Epidemiology Program (Myran, Brown, Tanuseputro), Ottawa Hospital Research Institute; School of Epidemiology and Public Health (Myran, Brown), University of Ottawa; Bruyère Research Institute (Tanuseputro); Department of Medicine (Tanuseputro), University of Ottawa, Ottawa, Ont.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOn Oct. 17, 2018, Canada legalized recreational cannabis with the dual goals of reducing youth use and eliminating the illicit cannabis market. We examined factors associated with access to physical cannabis stores across Canada 6 months following legalization.

methodsWe extracted the address and operating hours of all legal cannabis stores in Canada from online government and private listings. We conducted a descriptive study examining the association between private/hybrid (mixture of government and private stores) and government-only retail models with 4 measures of physical access to cannabis: store density, weekly hours of operation, median distance to the nearest school and relative availability of cannabis stores between low- and high-income neighbourhoods.

resultsSix months after legalization, there were 260 cannabis retail stores across Canada: 181 privately run stores, 55 government-run stores and 24 stores in the hybrid retail system. Compared to jurisdictions with a government-run model, jurisdictions with a private/hybrid retail model had 49% (95% confidence interval 10%-200%) more stores per capita, retailers were open on average 9.2 more hours per week, and stores were located closer to schools (median 166.7 m). In both retail models, there was over twice the concentration of cannabis stores in neighbourhoods in the lowest income quintile compared to the highest income quintile.

interpretationMarked differences in physical access to cannabis retail are emerging between jurisdictions with private/hybrid retail models and those with government-only retail models. Ongoing surveillance including monitoring differences in cannabis use and harms across jurisdictions is needed.

Identifiers

PMID31409593
PMCPMC6715107

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.