Please use this link to access this publication. ABSTRACT Cannabis was legalized for adult use in California in 2016 for individuals 21 and older. Among 18–20-years-olds, who can possess cannabis legally as medical cannabis patients (MCP) but not as non-patient cannabis users (NPU), the impact of adult use legalization (AUL) on cannabis and other substance use is unknown. Two cohorts of 18–20-year-old cannabis users (MCP and NPU) were surveyed, one in 2014–15 (n = 172 “pre-AUL”) and another in 2019–20 (n = 139 “post-AUL”), using similar data collection methods in Los Angeles, California. Logistic and negative binomial regressions estimated cohort and MCP differences for cannabis and other drug...

Abstract 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 had consumed cannabis in the past 12-month (n = 4119). Past 12-month cannabis consumption significantly increased among 55–65-year-olds from 2018 (19.3%) to the first-year post-legalization in 2019 (24.5%; p < .001), but remained stable thereafter (24.3%, and 25.6% in 2020 and 2021). More men reported past...

Abstract Background Studies investigating the association between cannabis use and physical activity have had mixed results. This study provided a population-based assessment while determining how the relationship is affected by variables such as cannabis legalization status and chronic medical conditions. Methods Behavior Risk Factor Surveillance System (BRFSS) data were used to evaluate the association between cannabis use and physical activity among adults ages 18 years and older in several states and territories of the U.S. during 2016–2022. Adjusted odds ratios (ORs) measuring the relationship between physical activity in the past 30 days (yes vs. no) and cannabis use in the past 30 days (yes...

Please use this link to access this publication. Abstract Introduction Social norms play an important role in cannabis use; however, there is little evidence on how social norms change in jurisdictions that legalize cannabis. This study examined trends in social norms before and after legalization of nonmedical cannabis in Canada in 2018. Methods Data are from the International Cannabis Policy Study, a series of cross-sectional surveys conducted annually with Canadian respondents aged 16–65 years. Analyses were conducted in 2023 and included data from 58,045 respondents across 4 waves: the year immediately before legalization (2018) and 3 post-legalization waves (2019–2021). Regression models examined trends in...

Abstract Background Little is known about whether cannabis legalization impacts cannabis use uptake or has spillover effects on co-use of cannabis and tobacco/nicotine (using both in the past 30 days). We determined associations of cannabis legalization with self-reported (1) current (past 30-day) cannabis use; (2) current (“now”) tobacco/nicotine use (smoking or electronic cigarette use); and (3) current co-use of cannabis and tobacco/nicotine and how prevalence is changing over time. Methods In this longitudinal study, a web-based survey was administered to a nationally representative, population-based panel of US adults in 2017, 2020, and 2021. We used weighted unadjusted binomial logistic GEE models to assess changes...

Summary 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...

Key Points Question  What is the prevalence of past 3-month cannabis use, and what are the reasons for use among patients in a large health system? Findings  In this cross-sectional study of 175 734 patients, 17.0% reported cannabis use, among whom 34.7% had results indicative of moderate to high risk for cannabis use disorder. While most patients (76.1%) reported using cannabis to manage a health symptom, very few patients identified as medical cannabis users. Meaning  Given the high rates of cannabis use, especially for symptom management, and the high levels of disordered use, it is essential that health care systems implement routine screening of primary care patients. Abstract...

Please use this link to access this publication. Abstract Introduction: The use of medical cannabis (MC) to treat a host of conditions has expanded considerably in the United States; however, precise quantitative assessments of purchasing characteristics are unknown. This study sought to characterize the trends in MC purchases, US dollars spent, and type and amount purchased by demographic and clinical characteristics. Materials and Methods: This descriptive exploratory association study examined statewide MC registry data in Arkansas linked at the person level with statewide transaction data documenting each MC purchase. MC transaction data (May 11, 2019–August 31, 2022) were assessed to identify persons who could be linked...

Please use this link to access this publication. Key Points Question  What is the adverse event profile of cannabinoids used for medical purposes in children and adolescents? Findings  In this systematic review and meta-analysis of 23 randomized clinical trials including 3612 participants, cannabinoids used for medical purposes in children and adolescents were associated with increased risk of adverse events, serious adverse events, and withdrawals due to adverse events compared with the control group. Meaning  The findings suggest that physicians considering cannabinoids for medical purposes in children and adolescents should weigh the risk and benefit profile of cannabinoids and available therapeutic options as well as the individual’s underlying...

Please use this link to access this publication. Abstract: Objective: Previous research has demonstrated different cannabis-related outcomes depending on the goal of cannabis use (i.e., recreational, medical, a hybrid of both), underscoring the need to identify variables associated with specific goals of use, particularly in understudied populations. Method: This report used data from a national survey of menopausal individuals using nonprobability sampling. Respondents reporting current regular (≥1x/month) cannabis use (medical n = 35; recreational n = 61; and hybrid n = 102) were included in multivariate logistic regression analyses examining demographic, clinical (e.g., menopause-related symptomatology), and cannabis-related variables associated with the goal of cannabis use. Results: Overall, an increased number...