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Browse normalized, publication-ready research with direct links to its evidence and source.
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Readable research linked to original sources
Browse normalized, publication-ready research with direct links to its evidence and source.
Loading articles data…
Readable research linked to original sources
Browse normalized, publication-ready research with direct links to its evidence and source.
28 articles
Newest firstBackground Although prior research has examined how cannabis legal status relates to psychosocial predictors of use, less is known about whether recreational legalization influences public knowledge of specific cannabis-related health effects. This study addresses this gap by analyzing trends in knowledge of health effects of cannabis consumption following the legalization of recreational cannabis in Canada. Metho…
Open article record in new tab ↗BACKGROUND: The United Kingdom legalized medical cannabis in 2018, yet little is known about people using cannabis medically with and without a prescription. This study aimed to estimate: 1) the percentage of people reporting using cannabis medically with and without a prescription; 2) the sources; 3) products used; and 4) associations between frequent product use and medical cannabis status. METHODS: Data were fr…
Open article record in new tab ↗Background Gender identity influences patterns of substance use; however, few population-level studies have included transgender and gender-diverse identities when examining patterns of cannabis use by gender identity. Methods Data are from the International Cannabis Policy Study's national, repeat cross-sectional surveys conducted annually between 2018-2023 in Canada and the United States. Weighted logistic and l…
Open article record in new tab ↗BACKGROUND: Young adults report heightened cannabis use yet show gaps in cannabis-related risk knowledge. Risk knowledge gaps in young adults with diverse cannabis use experience and across countries with varying cannabis policies, as well as associations with knowledge levels were explored. METHODS: The International Cannabis Policy Study (ICPS) is a cross-sectional, web-based survey that uses non-probability sam…
Open article record in new tab ↗Background Population data on cannabis use-beyond prevalence and frequency of use-in the UK is lacking, yet needed to inform harm reduction messaging about cannabis. This study examined (a) recreational and medical cannabis use; (b) cannabis product use; (c) cannabis risk perceptions via three different routes of administration; (d) how product use and risk perceptions vary by reasons for use and higher risk use.…
Open article record in new tab ↗Background and AimsThe UK legalised medical cannabis in 2018, yet little is known about people accessing cannabis legally via prescription or those using cannabis for medical purposes without a prescription. This study aimed to estimate: 1) the percentage of people who use cannabis medically with and without a prescription; 2) the sources used to obtain cannabis; 3) the products used; and 4) the associations betwe…
Open article record in new tab ↗Aims To identify variation in identification of medical consumers using alternative self-reported measures and assess whether differences in these rates exist across jurisdictions with different medical policy approaches using evidence from an international study on cannabis use. Design Secondary analysis of wave 4 (2021) of the International Cannabis Policy Study (ICPS) cross-sectional survey. Setting United Stat…
Cannabis consumption among aging adults in Canada is increasing. The aims of the study were to examine cannabis consumption patterns before and after non-medical cannabis legalization and assess whether these patterns differ between men and women. Data were analyzed from Canadian respondents in a repeat cross-sectional survey conducted in 2018-2021. Analyses were conducted among adults aged 55-65 (n = 18,177) who…
Open article record in new tab ↗Introduction The price of cannabis has important implications for many outcomes discussed in legalisation debates. This paper reports on legal and illegal prices of different cannabis products. Methods National surveys were conducted in 2022 and 2023 among Canadians aged 16-65 years as part of the International Cannabis Policy Study. Self-reported price, purchase quantity and legal versus illegal source of the'las…
Background Little literature exists on what sources of help individuals utilize for cannabis-related problems. The current study examined the percentage of consumers who sought help to manage cannabis-related problems, such as perceived cannabis use disorder, the most common sources of help sought, and factors associated with help-seeking. Methods Past 12-month cannabis consumers (N = 13,209) completed an online s…
Open article record in new tab ↗Objective To examine the prevalence of workplace cannabis use, including by state-level cannabis laws, occupational risk and medical cannabis use. Methods Data are cross-sectional from wave 6 (2023) of the International Cannabis Policy Study (ICPS) and include 26 458 respondents aged 16-65 years from the USA. Separate regression models were run analysing workplace cannabis use across: (1) state-level cannabis laws…
Open article record in new tab ↗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 fr…
Open article record in new tab ↗Objective The accessibility of legal cannabis in Canada may influence how consumers source their cannabis. The aims of this study were to examine (a) the distance between respondents' homes and legal retail stores, (b) the cannabis sources used in the past 12 months, and (c) the association between cannabis sources used and distance to legal retail stores. Method Data were analyzed from Canadian respondents partic…
Open article record in new tab ↗Background There is little research examining perceptions of cannabis use risk to mental health in countries with differing cannabis regulations. This study therefore examines such perceptions among youth between 2017 and 2021 in Canada (non-medical cannabis legalized in October 2018), England (highly-restricted medical cannabis legalized November 2018), and the US (non-medical cannabis legal in some states). Meth…
Open article record in new tab ↗Introduction Increasing cannabis legalization raises concerns that the use of tobacco, frequently used with cannabis, will also increase. This study investigated the association between the legal status of cannabis in places of residence and the prevalence of cannabis and tobacco co-use, simultaneous use, and mixing by comparing the prevalence among adults in Canada (prior to cannabis legalization) vs. adults in U…
Open article record in new tab ↗Background One of the objectives of cannabis legalization in Canada is to transition consumers from the illegal to the legal market. Little is known about how legal sourcing varies across different cannabis product types, provinces, and frequency of cannabis use. Methods Data were analyzed from Canadian respondents in the International Cannabis Policy Study, a repeat cross-sectional survey conducted annually from…
Open article record in new tab ↗Background Consumer perceptions of legal cannabis products may drive willingness to purchase from the illegal or legal market; however, little is known on this topic. The current study examined perceptions of legal products among Canadian cannabis consumers over a 3-year period following federal legalization of non-medical cannabis in 2018. Methods Data were analyzed from Canadian respondents in the International…
Open article record in new tab ↗Background Over-consumption is a common adverse outcome from cannabis edibles. States such as Colorado require each serving of cannabis edible to carry a THC symbol. This study aimed to test whether packaging edibles in separate servings and/or indicating the THC level per serving improves consumer understanding of serving size. Methods An 3 × 2 experimental task was conducted as part of the 2019 International Can…
Open article record in new tab ↗Rationale There has been increasing attention on cannabis use for medical purposes, but there is currently a lack of data on its epidemiology. Objectives To examine the epidemiology of self-reported cannabis use for medical purposes by (1) estimating its prevalence, (2) comparing gender and age differences, and (3) investigating what reasons they were used to manage. Methods Participants included 27,169 respondent…
Open article record in new tab ↗AimsWith increased liberalization of cannabis policies in North America, there is growing interest in the use of cannabis to manage pain instead of opioids. The objectives of the study were to: 1) examine the use of cannabis for pain relief in Canada and the United States (US) in 2018 and 2019; 2) examine the association between recreational cannabis laws and changes in the use of cannabis for pain relief, instead…
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