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Introduction: Cannabis ranks as one of the most widely used psychoactive substances worldwide. Its usage has been reported as a risk factor for developing a variety of physical and mental health issues, alongside social and economic problems. According to the World Health Organization (WHO), hazardous (or high-risk) substance use is defined as “a pattern of substance use that increases the risk of harmful consequences for the user.” The primary objective of this study was to achieve a consensus on an operational definition of high-risk cannabis use suitable for a European jurisdiction (Spain). Methods: A three round Delphi study was conducted. The Delphi technique entails group decision-making and iterative forecasting by consulting a panel of experts and conducting systematic feedback rounds. An online survey was distributed among a diverse expert panel comprising professionals from Spain working on fields related to cannabis use (research, policy planning, and clinical professionals). One-hundred ninety-nine invitations were sent to experts, of which forty-five (22.6%) accepted to participate. All participants were provided the option to revise a background document with the latest compiled scientific evidence and guidelines related to health and social conditions associated to cannabis usage. This background document also proposed the quantification of dose using a standardized unit established for the population of Spain (the Standard Joint Unit or SJU) based on quantity of cannabis main psychoactive constituent, 9-tetrahydrocannabinol (9-THC) (1 SJU = 1 joint = 0.25 g of cannabis = 7 mg of 9-THC). Three rounds of Likert scale and open-ended questions were administered until consensus, defined as ≥75% agreement, was attained. Results: Consensus was reached on defining high-risk cannabis use as the usage of more than 4 SJU (>28 mg THC) per week or any use of cannabis with potency >10% THC. Concurrent use of cannabis with other drugs was also considered high risk, while the smoked route was considered the riskiest administration route. It was also agreed that vulnerable groups for high-risk cannabis use (for whom any pattern of cannabis use represents high risk of harm) include individuals under the age of 21, pregnant or breastfeeding women, individuals with psychiatric history, those with medical health issues related to cannabis use, professional drivers and heavy machine operators. Conclusion: This operational definition of high-risk cannabis use for Spain elucidates usage patterns and individual vulnerability factors predictive of heightened harm. Its adoption holds potential to inform decision-making among individuals, professionals, and policy-makers, facilitating evidence-based interventions aimed at prevention and risk reduction.
Introduction: Cannabis ranks as one of the most widely used psychoactive substances worldwide. Its usage has been reported as a risk factor for developing a variety of physical and mental health issues, alongside social and economic problems. According to the World Health Organization (WHO), hazardous (or high-risk) substance use is defined as “a pattern of substance use that increases the risk of harmful consequences for the user.” The primary objective of this study was to achieve a consensus on an operational definition of high-risk cannabis use suitable for a European jurisdiction (Spain). Methods: A three round Delphi study was conducted. The Delphi technique entails group decision-making and iterative forecasting by consulting a panel of experts and conducting systematic feedback rounds. An online survey was distributed among a diverse expert panel comprising professionals from Spain working on fields related to cannabis use (research, policy planning, and clinical professionals). One-hundred ninety-nine invitations were sent to experts, of which forty-five (22.6%) accepted to participate. All participants were provided the option to revise a background document with the latest compiled scientific evidence and guidelines related to health and social conditions associated to cannabis usage. This background document also proposed the quantification of dose using a standardized unit established for the population of Spain (the Standard Joint Unit or SJU) based on quantity of cannabis main psychoactive constituent, 9-tetrahydrocannabinol (9-THC) (1 SJU = 1 joint = 0.25 g of cannabis = 7 mg of 9-THC). Three rounds of Likert scale and open-ended questions were administered until consensus, defined as ≥75% agreement, was attained. Results: Consensus was reached on defining high-risk cannabis use as the usage of more than 4 SJU (>28 mg THC) per week or any use of cannabis with potency >10% THC. Concurrent use of cannabis with other drugs was also considered high risk, while the smoked route was considered the riskiest administration route. It was also agreed that vulnerable groups for high-risk cannabis use (for whom any pattern of cannabis use represents high risk of harm) include individuals under the age of 21, pregnant or breastfeeding women, individuals with psychiatric history, those with medical health issues related to cannabis use, professional drivers and heavy machine operators. Conclusion: This operational definition of high-risk cannabis use for Spain elucidates usage patterns and individual vulnerability factors predictive of heightened harm. Its adoption holds potential to inform decision-making among individuals, professionals, and policy-makers, facilitating evidence-based interventions aimed at prevention and risk reduction.
Background Progressive harm reduction policies have been implemented in British Columbia, Canada. However, youth who use drugs face barriers to receiving harm reduction care, resulting in increasing opioid-related hospitalizations and drug toxicity deaths. This scoping review collates peer-reviewed evidence to understand the barriers and facilitators faced by youth who use drugs when accessing harm reduction programming in British Columbia, Canada. Methods This scoping review entailed conducting a systematic search of relevant databases to identify relevant articles. Articles were included if they: (i) contained youth falling between the ages of 12 and 26 years old; (ii) explored accessibility, barriers, and/or facilitators to harm reduction care or related topics; (iii) were empirical research articles using primary data (i.e., reviews, grey literature, theoretical or conceptual papers, books, etc. were excluded); and (iv) were available in the English language, given the geographic focus on British Columbia. Results A total of 398 sources were identified and ultimately, data from 13 sources were charted and extracted. When investigating barriers to harm reduction care among youth, four themes emerged: self-stigma, service navigation, service delivery, and negative provider interactions. Furthermore, in exploring factors that facilitate harm reduction care for youth, four themes surfaced: ability to meet basic needs, positive provider interactions, social networks, and risk mitigation guidance. Conclusions The expansion of harm reduction services in 2016 did not fully address accessibility challenges faced by youth who use drugs. Barriers continue to hinder harm reduction engagement, while supportive networks, positive provider interactions, and the ability to meet basic needs facilitated sustained access. Tailored policy interventions rooted in equity are crucial to improving access to harm reduction services for youth who use drugs.
Background Canada has one of the highest prevalence of cannabis use globally, particularly among young adults aged 20–24 (50%) and youth aged 16–19 (37%). In 2018, Canada legalized recreational cannabis with the aim of protecting youth by restricting their access and raising public awareness of health risks. However, there has been limited qualitative research on the perceptions of harms associated with youth cannabis use since legalization, which is crucial for developing effective harm reduction strategies. This qualitative study examined perceptions of cannabis use among youth from the perspectives of youth, parents, and service providers. We explored how participants described the perceived risks or harms associated with youth cannabis use, as well as how they described their own and others’ approaches to reducing cannabis-related risks and harms. Methods This qualitative study used a community-based participatory research approach in partnership with Families for Addiction Recovery (FAR), a national charity founded by parents of youth and young adults with addiction issues. Virtual semi-structured interviews were conducted, and the data were analyzed using thematic analysis. Results The study included 88 participants from three key groups (n = 31 youth, n = 26 parents, n = 31 service providers). Two main themes emerged regarding perceived risks or harms associated with cannabis use: (1) concerns about cannabis-related risks and harms, including addiction, brain development, impact on family, and various adverse effects on areas such as motivation, concentration, finances, employment, education, physical and mental health; and (2) minimization of risks and harms, featuring conflicting messages, normalization, and perceptions of cannabis being less harmful than other substances. Additionally, two themes related to harm reduction approaches were identified: (1) implementation of harm reduction, and (2) challenges in implementing a harm reduction approach. Specific challenges for each participant group were noted, along with structural barriers such as unavailable and inaccessible services, easy access to cannabis, inadequate public education, and insufficient information on lower-risk cannabis use guidelines. Conclusions Youth cannabis use is a significant public health concern that requires a multi-pronged approach. Developing youth-centered harm reduction strategies that recognize the developmental needs and vulnerabilities of youth, as well as the important role of families, is imperative.
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