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Cantor N, Silverman M, Gaudreault A, Hutton B, Brown C, Elton-Marshall T, Imtiaz S, Sikora L, Tanuseputro P, Myran DT. The association between physical availability of cannabis retail outlets and frequent cannabis use and related health harms: a systematic review. LANCET REGIONAL HEALTH. AMERICAS 2024; 32:100708. [PMID: 38486811 PMCID: PMC10937151 DOI: 10.1016/j.lana.2024.100708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 02/10/2024] [Accepted: 02/20/2024] [Indexed: 03/17/2024]
Abstract
An increasing number of regions have or are considering legalising the sale of cannabis for adult use. Experience from tobacco and alcohol regulation has found that greater access to physical retail stores is positively associated with increased substance use and harm. Whether this association exists for cannabis is unclear. We completed a systematic review examining the association between cannabis retail store access and adverse health outcomes. We identified articles up until July 20, 2023 by searching four databases. We included studies examining the association between measures of cannabis store access and adverse outcomes: frequent or problematic cannabis use, healthcare encounters due to cannabis use (e.g., cannabis-induced psychosis), and healthcare encounters potentially related to cannabis (e.g., self-harm episodes). Results were compared by study design type, retail access measure, and by subgroups including: children, adolescents, young adults, adults, and pregnant individuals. This review was registered with PROSPERO (CRD42021281788). The search generated 5750 citations of which we included 32 studies containing 44 unique primary analyses (unique retail measure and outcome pairs). Studies come from 4 countries (United States, Canada, Netherlands and Uruguay). Among the included analyses, there were consistent positive associations between greater cannabis retail access and 1) increased healthcare service use or poison control calls directly due to cannabis (10/12 analyses; 83%) (2) increased cannabis use and cannabis-related hospitalization during pregnancy (4/4; 100%) and 3) frequent cannabis use in adults and young adults (7/11; 64%). There was no consistent positive association between greater cannabis retail and increased frequent cannabis use in adolescents (1/4; 25%), healthcare service use potentially related to cannabis (2/6; 33%) or increased adverse neonatal birth outcomes (2/7; 26.8%). There is a positive association between greater cannabis store access and increases in cannabis harm. In countries with legal cannabis, retail restrictions may reduce use and harm. Funding Canadian Centre on Substance Use and Addiction (CCSA).
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Affiliation(s)
- Nathan Cantor
- Department of Medicine, McMaster University, 90 Main St W Hamilton, ON, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, 1053 Carling Avenue, ON, Canada
| | - Max Silverman
- Department of Medicine, McMaster University, 90 Main St W Hamilton, ON, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, 1053 Carling Avenue, ON, Canada
| | - Adrienne Gaudreault
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, 1053 Carling Avenue, ON, Canada
| | - Brian Hutton
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, 1053 Carling Avenue, ON, Canada
| | - Catherine Brown
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, 600 Peter Morand Crescent, ON, Canada
| | - Tara Elton-Marshall
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, 600 Peter Morand Crescent, ON, Canada
- Institute for Mental Health Policy Research, Centre for Addiction and Mental Health, 33 Russell Street, Toronto, ON, Canada
- Dalla Lana School of Public Health, University of Toronto, 6th Floor, 155 College Street, Toronto, ON, Canada
- Department of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
- Department of Health Sciences, Lakehead University, 955 Oliver Road, Thunder Bay, ON SN 1006, Canada
| | - Sameer Imtiaz
- Institute for Mental Health Policy Research, Centre for Addiction and Mental Health, 33 Russell Street, Toronto, ON, Canada
| | - Lindsey Sikora
- University of Ottawa, 75 Laurier Avenue East, ON, Canada
| | - Peter Tanuseputro
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, 1053 Carling Avenue, ON, Canada
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, 600 Peter Morand Crescent, ON, Canada
- Bruyere Research Institute, 85 Primrose Ave, ON, Canada
- ICES uOttawa, Ottawa Hospital Research Institute, 1053 Carling Avenue, ON, Canada
| | - Daniel T. Myran
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, 1053 Carling Avenue, ON, Canada
- Bruyere Research Institute, 85 Primrose Ave, ON, Canada
- ICES uOttawa, Ottawa Hospital Research Institute, 1053 Carling Avenue, ON, Canada
- Department of Family Medicine, University of Ottawa, 600 Peter Morand Crescent, ON, Canada
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Audet C, Zerriouh M, Nguena Nguefack HL, Julien N, Pagé MG, Guénette L, Blais L, Lacasse A. Where we live matters: a comparison of chronic pain treatment between remote and non-remote regions of Quebec, Canada. FRONTIERS IN PAIN RESEARCH 2024; 5:1291101. [PMID: 38468692 PMCID: PMC10925759 DOI: 10.3389/fpain.2024.1291101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 02/15/2024] [Indexed: 03/13/2024] Open
Abstract
Objective Where a person lives is a recognized socioeconomic determinant of health and influences healthcare access. This study aimed to compare the pain treatment profile of persons with chronic pain (CP) living in remote regions to those living in non-remote regions (near or in major urban centers). Methods A cross-sectional study was performed among persons living with CP across Quebec. In a web-based questionnaire, participants were asked to report in which of the 17 administrative regions they were living (six considered "remote"). Pain treatment profile was drawn up using seven variables: use of prescribed pain medications, over-the-counter pain medications, non-pharmacological pain treatments, multimodal approach, access to a trusted healthcare professional for pain management, excessive polypharmacy (≥10 medications), and use of cannabis for pain. Results 1,399 participants completed the questionnaire (women: 83.4%, mean age: 50 years, living in remote regions: 23.8%). As compared to persons living in remote regions, those living in non-remote regions were more likely to report using prescribed pain medications (83.8% vs. 67.4%), a multimodal approach (81.5% vs. 75.5%), experience excessive polypharmacy (28.1% vs. 19.1%), and report using cannabis for pain (33.1% vs. 20.7%) (bivariable p < 0.05). Only the use of prescribed medications as well as cannabis remained significantly associated with the region of residence in the multivariable models. Discussion There are differences in treatment profiles of persons with CP depending on the region they live. Our results highlight the importance of considering remoteness, and not only rurality, when it comes to better understanding the determinants of pain management.
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Affiliation(s)
- Claudie Audet
- Département des Sciences de la Santé, Université du Québec en Abitibi-Témiscamingue (UQAT), Rouyn-Noranda, QC, Canada
| | - Meriem Zerriouh
- Département des Sciences de la Santé, Université du Québec en Abitibi-Témiscamingue (UQAT), Rouyn-Noranda, QC, Canada
| | - Hermine Lore Nguena Nguefack
- Département des Sciences de la Santé, Université du Québec en Abitibi-Témiscamingue (UQAT), Rouyn-Noranda, QC, Canada
| | - Nancy Julien
- Département des Sciences de la Santé, Université du Québec en Abitibi-Témiscamingue (UQAT), Rouyn-Noranda, QC, Canada
| | - M. Gabrielle Pagé
- Department of Anesthesiology and Pain Medicine, Centre de Recherche Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC, Canada
- Département d’Anesthésiologie et de Médecine de la Douleur, Faculté de Médecine, Université de Montréal, Montréal, QC, Canada
| | - Line Guénette
- Faculté de Pharmacie, Université Laval, Québec, QC, Canada
- Population Health and Optimal Health Practices Axis, Centre de Recherche CHU de Québec—Université Laval, Québec, QC, Canada
| | - Lucie Blais
- Faculté de Pharmacie, Université de Montréal, Montréal, QC, Canada
| | - Anaïs Lacasse
- Département des Sciences de la Santé, Université du Québec en Abitibi-Témiscamingue (UQAT), Rouyn-Noranda, QC, Canada
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Fataar F, Driezen P, Owusu-Bempah A, Hammond D. Distribution of legal retail cannabis stores in Canada by neighbourhood deprivation. J Cannabis Res 2024; 6:5. [PMID: 38351142 PMCID: PMC10865652 DOI: 10.1186/s42238-023-00211-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 12/11/2023] [Indexed: 02/16/2024] Open
Abstract
OBJECTIVES In legal cannabis markets, the distribution of retail stores has the potential to influence transitions from illegal to legal sources as well as consumer patterns of use. The current study examined the distribution of legal cannabis stores in Canada according to level of neighbourhood deprivation. METHODS Postal code data for all legal cannabis stores in Canada were collected from government websites from October 2018 to September 2021. This data was linked to the Institut National de Santé Publique du Québec measures for material and social neighbourhood deprivation. Descriptive data are reported, including differences across provinces with different retail systems. RESULTS At the national level, there were approximately 8.0 retail cannabis stores per 100,000 individuals age 15+ in September 2021. The distribution of stores was closely aligned with the expected distribution across levels of material deprivation: for example, 19.5% of stores were located in neighbourhoods with the lowest level of material deprivation versus 19.1% in the highest level. More cannabis stores were located in the 'most socially deprived' or 'socially deprived' neighbourhoods (37.2% and 22.1%, respectively), characterized by a higher proportion of residents who live alone, are unmarried, or in single-parent families. The distribution of stores in provinces and territories were generally consistent with national patterns with a few exceptions. CONCLUSION In the first 3 years following cannabis legalization in Canada, retail cannabis stores were evenly distributed across materially deprived neighbourhoods but were more common in socially deprived neighbourhoods. Future monitoring of retail store locations is required as the legal retail market evolves in Canada.
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Affiliation(s)
- Fathima Fataar
- School of Public Health Sciences, University of Waterloo, 200 University Ave W, Waterloo, ON, N2L 3G1, Canada
| | - Pete Driezen
- School of Public Health Sciences, University of Waterloo, 200 University Ave W, Waterloo, ON, N2L 3G1, Canada
- Department of Psychology, University of Waterloo, Waterloo, ON, Canada
| | | | - David Hammond
- School of Public Health Sciences, University of Waterloo, 200 University Ave W, Waterloo, ON, N2L 3G1, Canada.
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Williams E, Trangenstein P, Patterson D, Kerr W. Higher Concentration of Marijuana Dispensaries in Neighborhoods with More Disadvantage Following Legalization in Washington. RESEARCH SQUARE 2023:rs.3.rs-3393457. [PMID: 37886567 PMCID: PMC10602076 DOI: 10.21203/rs.3.rs-3393457/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Washington is one of 21 states that have legalized recreational marijuana resulting in neighborhoods that have experienced a change in physical environment with the emergence of dispensaries. This study examines the selection of dispensaries into disadvantage area, incorporating local policies and neighborhood characteristics. Marijuana and alcohol sales data were from the Washington State Liquor and Cannabis Board; and neighborhood characteristics were drawn from the American Community Survey 2010-2016 5-year estimates. Using factor analysis we created a neighborhood disadvantage index where census tracts were stratified into disadvantaged tertiles; and counties were stratified by urban/rural status. We examined the association between dispensaries, neighborhood characteristics, and local marijuana policies using Negative Binomial Regression with a natural log of land area as an offset, separately for 2014-2016. Dispensaries opened in high-disadvantaged CTs in 2014 and then dispersed across the state while retaining higher concentrations in disadvantaged urban CTs. Marijuana-specific policies (allotted dispensaries and retail cap) were found to be predictors of marijuana dispensary density. This study provides evidence that marijuana dispensaries were disproportionately located in areas with greater disadvantage. State and local marijuana policies emerged as important predictors, underscoring the importance of designing thoughtful and equitable license allocation procedures and policies.
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Jeste DV, Malaspina D, Bagot K, Barch DM, Cole S, Dickerson F, Dilmore A, Ford CL, Karcher NR, Luby J, Rajji T, Pinto-Tomas AA, Young LJ. Review of Major Social Determinants of Health in Schizophrenia-Spectrum Psychotic Disorders: III. Biology. Schizophr Bull 2023; 49:867-880. [PMID: 37023360 PMCID: PMC10318888 DOI: 10.1093/schbul/sbad031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
Abstract
BACKGROUND Social determinants of health (SDoHs) are nonmedical factors that significantly impact health and longevity. We found no published reviews on the biology of SDoHs in schizophrenia-spectrum psychotic disorders (SSPD). STUDY DESIGN We present an overview of pathophysiological mechanisms and neurobiological processes plausibly involved in the effects of major SDoHs on clinical outcomes in SSPD. STUDY RESULTS This review of the biology of SDoHs focuses on early-life adversities, poverty, social disconnection, discrimination including racism, migration, disadvantaged neighborhoods, and food insecurity. These factors interact with psychological and biological factors to increase the risk and worsen the course and prognosis of schizophrenia. Published studies on the topic are limited by cross-sectional design, variable clinical and biomarker assessments, heterogeneous methods, and a lack of control for confounding variables. Drawing on preclinical and clinical studies, we propose a biological framework to consider the likely pathogenesis. Putative systemic pathophysiological processes include epigenetics, allostatic load, accelerated aging with inflammation (inflammaging), and the microbiome. These processes affect neural structures, brain function, neurochemistry, and neuroplasticity, impacting the development of psychosis, quality of life, cognitive impairment, physical comorbidities, and premature mortality. Our model provides a framework for research that could lead to developing specific strategies for prevention and treatment of the risk factors and biological processes, thereby improving the quality of life and increasing the longevity of people with SSPD. CONCLUSIONS Biology of SDoHs in SSPD is an exciting area of research that points to innovative multidisciplinary team science for improving the course and prognosis of these serious psychiatric disorders.
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Affiliation(s)
- Dilip V Jeste
- Department of Psychiatry, University of California, San Diego (Retired), CA, USA
| | - Dolores Malaspina
- Departments of Psychiatry, Neuroscience and Genetics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Kara Bagot
- Department of Psychiatry, Addiction Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Deanna M Barch
- Departments of Psychological and Brain Sciences, Psychiatry, and Radiology, Washington University in St. Louis, St. Louis, MO, USA
| | - Steve Cole
- Departments of Psychiatry and Biobehavioral Sciences, and Medicine, University of California, Los Angeles, CA, USA
| | - Faith Dickerson
- Department of Psychology, Sheppard Pratt, Baltimore, MD, USA
| | - Amanda Dilmore
- Department of Pediatrics, University of California, San Diego, CA, USA
| | - Charles L Ford
- Center for Translational Social Neuroscience, Department of Psychiatry, Emory University, Atlanta, GA, USA
| | - Nicole R Karcher
- Department of Psychiatry, Washington University in St. Louis, St. Louis, MO, USA
| | - Joan Luby
- Department of Psychiatry (Child), Washington University in St. Louis, St. Louis, MO, USA
| | - Tarek Rajji
- Adult Neurodevelopment and Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - Adrián A Pinto-Tomas
- Biochemistry Department, School of Medicine, Universidad de Costa Rica, San José, Costa Rica
| | - Larry J Young
- Center for Translational Social Neuroscience, Department of Psychiatry, Emory University, Atlanta, GA, USA
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Manthey J, Jacobsen B, Hayer T, Kalke J, López-Pelayo H, Pons-Cabrera MT, Verthein U, Rosenkranz M. The impact of legal cannabis availability on cannabis use and health outcomes: A systematic review. THE INTERNATIONAL JOURNAL OF DRUG POLICY 2023; 116:104039. [PMID: 37126997 DOI: 10.1016/j.drugpo.2023.104039] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 04/06/2023] [Accepted: 04/15/2023] [Indexed: 05/03/2023]
Abstract
BACKGROUND For alcohol, regulating availability is an effective way to reduce consumption and harm. Similarly, the higher availability of medical cannabis dispensaries has been linked to increased cannabis consumption and harm. For recreational cannabis markets, such a link is suspected but still poorly understood. METHODS A systematic literature review (PROSPERO registration number 342357) was conducted on 1 July 2022 in common libraries (Medline, Web of Science, PsycInfo, Psyndex, CINAHL, Embase, SCOPUS, Cochrane) for publications since 2012. Studies linking variations in the availability of legal cannabis products to behavioral outcomes (cannabis use or related health indicators) were included, while studies focusing solely on the legalization of medical cannabis were excluded. The risk of bias was assessed using an adapted version of the Newcastle-Ottawa-Scale. RESULTS After screening n = 6,253 studies, n = 136 were selected for full-text review, out of which n = 13 met the inclusion criteria, reporting on n = 333,550 study participants and n = 855,630 presentations to emergency departments. All studies were conducted in North America, with the majority from Western US states. Using longitudinal (n = 1), cross-sectional (n = 4), or repeated cross-sectional (n = 8) study designs, an increased availability of legal cannabis was linked to increased current cannabis use and health-related outcomes (vomiting, psychosis, or cannabis-involved pregnancies), regardless of the indicator employed to measure availability (proximity or density) among both adults and adolescents. The positive correlation between cannabis availability and consumption is most pronounced among those groups who have been less exposed to cannabis before legalization. The association between the availability of legal cannabis and risky use indicators was less consistent. CONCLUSIONS Groups who have been least exposed to cannabis before legalization may be most susceptible to increased availability. In jurisdictions with legal cannabis markets, restrictions on the number of legal cannabis retailers, especially in densely populated areas, appear warranted.
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Affiliation(s)
- Jakob Manthey
- Center for Interdisciplinary Addiction Research (ZIS), Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf (UKE), Martinistraße 52, 20246 Hamburg, Germany; Institute for Interdisciplinary Addiction and Drug Research, Lokstedter Weg 24, 20251 Hamburg, Germany; Department of Psychiatry, Medical Faculty, University of Leipzig, Semmelweisstraße 10, 04103 Leipzig, Germany.
| | - Britta Jacobsen
- Center for Interdisciplinary Addiction Research (ZIS), Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf (UKE), Martinistraße 52, 20246 Hamburg, Germany; Institute for Interdisciplinary Addiction and Drug Research, Lokstedter Weg 24, 20251 Hamburg, Germany
| | - Tobias Hayer
- University of Bremen, Institute of Public Health and Nursing Research, Department for Health and Society, Grazerstr. 2, 28359 Bremen, Germany
| | - Jens Kalke
- Center for Interdisciplinary Addiction Research (ZIS), Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf (UKE), Martinistraße 52, 20246 Hamburg, Germany; Institute for Interdisciplinary Addiction and Drug Research, Lokstedter Weg 24, 20251 Hamburg, Germany
| | - Hugo López-Pelayo
- Grup de Recerca en Addicions Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Unitat de Conductes Addictives, Servei de Psiquiatria Psicologia (ICN), Hospital Clínic de Barcelona, Barcelona, Spain; Red de Investigación en Atención Primaria de Adicciones (RIAPAd), Spain
| | - Maria Teresa Pons-Cabrera
- Grup de Recerca en Addicions Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Unitat de Conductes Addictives, Servei de Psiquiatria Psicologia (ICN), Hospital Clínic de Barcelona, Barcelona, Spain
| | - Uwe Verthein
- Center for Interdisciplinary Addiction Research (ZIS), Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf (UKE), Martinistraße 52, 20246 Hamburg, Germany
| | - Moritz Rosenkranz
- Center for Interdisciplinary Addiction Research (ZIS), Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf (UKE), Martinistraße 52, 20246 Hamburg, Germany; Institute for Interdisciplinary Addiction and Drug Research, Lokstedter Weg 24, 20251 Hamburg, Germany
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Yaskewich DM. Local Prohibitions on Marijuana Businesses With On-Site Consumption: Evidence from New York State. JOURNAL OF DRUG ISSUES 2022. [DOI: 10.1177/00220426221138229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
As several US states have legalized recreational marijuana over the past decade, local approval of commercial marijuana activities has faced opposition in a non-negligible share of communities. A common provision in state laws often grants local governments the authority to prohibit marijuana businesses from locating within their jurisdictions. This paper analyzed determinants of local government policies in New York State following the legalization of recreational marijuana in 2021. A key feature of New York’s law authorized municipal governments to pass an “opt-out” ordinance prohibiting marijuana retail stores, on-site consumption establishments, or both. Based on results from multilevel logistic regression models, the likelihood of allowing commercial marijuana activities was higher for local governments representing communities with larger Black populations, fewer evangelical Protestants, and lower levels of household income. While slightly more municipalities prohibited on-site consumption, determinants of opt-out decisions were similar for both retail and consumption businesses.
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