Evidence map›Paper›PMID 34068202›Full record

ArticleInternational journal of environmental research and public health2021

Cannabis Policy Changes and Adolescent Cannabis Use: Evidence from Europe.

Elisa Benedetti, Giuliano Resce, Paolo Brunori, Sabrina Molinaro

Abstract read
In one paragraph

Article in International journal of environmental research and public health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. The genetics of cannabis lifetime use.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Pooled it
  2. Review
  3. Cannabis Use and Outcomes in Breast Surgery.Plastic and reconstructive surgery. Global open · 2026
    Article
  4. Review
  5. Article
  6. Article
  7. Pan-Genome Analysis ofInternational journal of molecular sciences · 2025
    Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Elisa BenedettiItalian National Research Council, Institute of Clinical Physiology (CNR-IFC), via Moruzzi, 1, 56124 Pisa, Italy.ORCID 0000-0002-7345-3962
Giuliano ResceCentro Studi SOSE S.p.A. (Ministry of Economy and Finance), via Mentore Maggini, 48C, 00143 Rome, Italy.ORCID 0000-0002-3913-0510
Paolo BrunoriDepartment of Economics and Management, University of Florence, via delle Pandette, 32, 50127 Florence, Italy.ORCID 0000-0002-1624-905X
Sabrina MolinaroItalian National Research Council, Institute of Clinical Physiology (CNR-IFC), via Moruzzi, 1, 56124 Pisa, Italy.ORCID 0000-0001-7221-0873

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cannabis accounts for the largest share of the illicit drug market, with a high prevalence of use even among adolescents. To tackle this longstanding problem, many kinds of reforms to national cannabis control policies have been implemented in Europe, but their effectiveness is still unclear. This paper analyses the association between selected categories of cannabis policy reforms and changes in perceived cannabis availability and patterns of use among adolescents. Data from 20 European countries across 15 years were drawn from a novel database of the European school Survey Project on Alcohol and other Drugs (ESPAD). Our analysis is based on a Difference-in-Differences design, which application is allowed by the fact that only thirteen out of the twenty countries included implemented policy changes. The results suggest that selected categories of reforms influence the availability and prevalence of cannabis use. In particular, some forms of restrictive intervention reduce the general prevalence of use and more liberal reforms seem linked to an increase in the share of students initiating use of cannabis. We find no evidence of an effect of policy changes on the share of frequent users, which are presumably those more likely to develop use-related health consequences.

Indexed as

Adolescent BehaviorCannabisAdolescentEuropeHumansPolicyStudentsadolescentscannabis use and availabilityDifferences-in-Differencesdrug policyESPAD

Identifiers

PMID34068202
PMCPMC8152978

What OpenQuestion holds

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Registered trials

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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.