ArticleTrends in psychiatry and psychotherapy2022
Current state of cannabis use, policies, and research across sixteen countries: cross-country comparisons and international perspectives.
Article in Trends in psychiatry and psychotherapy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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.
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Who cites it
34 citing papers in PubMed, 1 synthesis or guideline pooled it, 62 citations in OpenAlex.
- Neurometabolite Alterations Associated With Cannabis Use: A Proton Magnetic Resonance Spectroscopy Meta-Analysis.Human brain mapping · 2025Pooled it
- Change of substance-related hospitalisation in adolescents after cannabis legalisation in Thailand in 2022.Addiction (Abingdon, England) · 2026Article
- Beyond Cigarettes: Cannabis Co-Use, ART Adherence, and Psychosocial Burden Among People With HIV Enrolled in a Smoking Cessation Randomized Controlled Trial.Journal of studies on alcohol and drugs · 2026Article
- Knowledge, Attitudes, and Clinical Experience with Cannabinoid Therapies: A Cross-Sectional Survey of Rheumatologists.Mediterranean journal of rheumatology · 2026Article
- Identification of Changes in the Transcriptome Profile of Human Hepatoma HepG2 Cells Exposed to Combined Sorafenib and Cannabis Treatment.International journal of molecular sciences · 2026Article
- A 2025 Nationwide Cross-Sectional Survey on Public Attitudes Toward the Legalization and Depenalization of Recreational Cannabis in Poland.Medical science monitor : international medical journal of experimental and clinical research · 2026Article
- Mapping the research landscape of minor cannabinoids: a bibliometric analysis of research trends and hotspots.Journal of cannabis research · 2026Article
- The Causal Effect of Social Isolation on Cannabis Use Disorder and the Mediating Role of Depression: Evidence From a Mendelian Randomization Study.Brain and behavior · 2025Article
- Article
- State of the Science: Health Care Provider Communication of Cannabis Use Among Adults Living with Cancer.Journal of cancer education : the official journal of the American Association for Cancer Education · 2025Review
- A constrained disorder principle-based second-generation artificial intelligence digital medical cannabis system: A real-world data analysis.Journal of public health research · 2025Article
- Review
- How are pro- and anti-cannabis messaging exposures related to US young adult cannabis use-related factors?Health education research · 2025Article
- Chronic Marijuana Use and Chronic Obstructive Pulmonary Disease: A Case Report.International journal of chronic obstructive pulmonary disease · 2025Article
- Research mapping of cannabinoids and endocannabinoid system in cancer over the past three decades: insights from bibliometric analysis.Frontiers in pharmacology · 2025Article
- Stigma against Cannabis and Tobacco Users by Nonusers in the U.S.: The Role of Culture and Honor Values.Current research in ecological and social psychology · 2025Article
- Clearing the air: Heightened perception of harm from secondhand cannabis smoke exposure is associated with no in-home cannabis smoking in a 21-country convenience sample.Preventive medicine · 2024Article
- Unveiling the impact of water-boiled cannabis on warfarin: A case report of atrial fibrillation patients after cannabis legalization in Thailand.Toxicology reports · 2024Article
- Genome-wide identification of cannabinoid biosynthesis genes in non-drug type Cannabis (Cannabis sativa L.) cultivar.Journal of cannabis research · 2024Article
- Development and initial validation of the cannabis-related psychosis risk literacy scale (CPRL): a multinational psychometric study.BMC psychiatry · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
20 authors at 20 institutions in 20 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionVarying public views on cannabis use across countries may explain the variation in the prevalence of use, policies, and research in individual countries, and global regulation of cannabis. This paper aims to describe the current state of cannabis use, policies, and research across sixteen countries.
methodsPubMed and Google Scholar were searched for studies published from 2010 to 2020. Searches were conducted using the relevant country of interest as a search term (e.g., "Iran"), as well as relevant predefined keywords such as "cannabis," "marijuana," "hashish," "bhang "dual diagnosis," "use," "addiction," "prevalence," "co-morbidity," "substance use disorder," "legalization" or "policy" (in English and non-English languages). These keywords were used in multiple combinations to create the search string for studies' titles and abstracts. Official websites of respective governments and international organizations were also searched in English and non-English languages (using countries national languages) to identify the current state of cannabis use, policies, and research in each of those countries.
resultsThe main findings were inconsistent and heterogeneous reporting of cannabis use, variation in policies (e.g., legalization), and variation in intervention strategies across the countries reviewed. European countries dominate the cannabis research output indexed on PubMed, in contrast to Asian countries (Thailand, Malaysia, India, Iran, and Nepal).
conclusionsAlthough global cannabis regulation is ongoing, the existing heterogeneities across countries in terms of policies and epidemiology can increase the burden of cannabis use disorders disproportionately and unpredictably. There is an urgent need to develop global strategies to address these cross-country barriers to improve early detection, prevention, and interventions for cannabis use and related disorders.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.