ArticleFrontiers in psychiatry2020
Cannabis and COVID-19: Reasons for Concern.
Article in Frontiers in psychiatry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers, 2 of them syntheses that pooled it.
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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
52 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- [Impact of the COVID-19 pandemic on cannabis use in young adults and general population: a systematic review].Revista espanola de salud publica · 2023Pooled it
- Alcohol and other substance use during the COVID-19 pandemic: A systematic review.Drug and alcohol dependence · 2021Pooled it
- Clustering of adolescents' health behaviors before and during the COVID-19 pandemic: examining transitions and the role of demographics and parental health behaviors.BMC public health · 2025Article
- Changes in prenatal cannabis use and perceptions during the COVID-19 pandemic.Drug and alcohol dependence reports · 2025Article
- Contextualizing Changes in e-Cigarette Use During the Early COVID-19 Pandemic and Accompanying Infodemic ("So Much Contradictory Evidence"): Qualitative Document Analysis of Reddit Forums.Journal of medical Internet research · 2025Article
- Representative national survey on drug use during the COVID-19 stay-at-home order in the USA.BMJ open · 2025Article
- Impact of the COVID-19-Related Lockdown on Psychoactive Substance Consumption and Mental Health in Morocco.Ethiopian journal of health sciences · 2025Article
- Changes in cannabis use during the COVID-19 pandemic: a comparison between Poland and Canada.Archives of medical science : AMS · 2025Article
- A qualitative study of experiences among young adults who increased their cannabis use during the COVID-19 pandemic.BMC public health · 2024Article
- Immunomodulatory effects of cannabinoids against viral infections: a review of its potential use in SARS-CoV2 infection.Virusdisease · 2024Review
- Profiles of cannabis users and impact on cannabis cessation.PloS one · 2024Article
- The rising use of cognitive enhancement drugs and predictors of use during COVID-19: findings from a cross-sectional survey of students and university staff in the UK.Frontiers in psychology · 2024Article
- Using Transformer-Based Topic Modeling to Examine Discussions of Delta-8 Tetrahydrocannabinol: Content Analysis.Journal of medical Internet research · 2023Article
- Changes in self-reported cannabis use during the COVID-19 pandemic: a scoping review.BMC public health · 2023Article
- Location and home rules of cannabis use - Findings from marijuana use and environmental survey 2020, a nationally representative survey in the United States.Preventive medicine reports · 2023Article
- The COVID-19 pandemic and cannabis use in Canada-a scoping review.Journal of cannabis research · 2023Article
- Trends in Illicit Cannabis Potency based on the Analysis of Law Enforcement Seizures in the Southern Area of Rome.Toxics · 2023Article
- Changes in frequency of cannabis use among people with HIV during the COVID-19 pandemic: a multi-methods study to explore the underlying reasons for change.The American journal of drug and alcohol abuse · 2023Article
- COVID-19 Vaccine Uptake and Attitudes Within Two Cohorts of Younger Adult Cannabis Users.Journal of drug issues · 2023Article
- Changes in Quantity Measures of Various Forms of Cannabis Consumption among Emerging Adults in Canada in Relation to Policy and Public Health Developments.International journal of environmental research and public health · 2023Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The lockdown measures implemented to curb the spread of SARS-CoV-2 may affect (illicit) drug consumption patterns. This rapid response study investigated changes in cannabis use in a non-probability sample of cannabis users in the Netherlands during the early lockdown period. We fielded an online cross-sectional survey 4-6 weeks after implementation of lockdown measures in the Netherlands on March 15, 2020. We measured self-reported \motives for changes in use, and assessed cannabis use frequency (use days), number of joints per typical use day, and route of administration in the periods before and after lockdown implementation. 1,563 cannabis users were recruited. Mean age was 32.7 ± 12.0 years; 66.3% were male and 67.9% used cannabis (almost) daily. In total, 41.3% of all respondents indicated that they had increased their cannabis use since the lockdown measures, 49.4% used as often as before, 6.6% used less often, and 2.8% stopped (temporarily). One-third of those who were not daily users before the lockdown became (almost) daily users. Before the lockdown, most respondents (91.4%) used cannabis in a joint mixed with tobacco and 87.6% still did so. Among users of joints, 39.4% reported an increase in the average number consumed per use day; 54.2% stayed the same and 6.4% used fewer joints. This rapid response study found evidence that during the lockdown more users increased rather than decreased cannabis consumption according to both frequency and quantity. These data highlight the need to invest more resources in supporting cessation, harm reduction, and monitoring longer term trends in cannabis use.
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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.