Evidence mapPaperPMID 32804835Full record

ArticlePain2021

Adverse effects of heavy cannabis use: even plants can harm the brain.

Lucia Sideli, Giulia Trotta, Edoardo Spinazzola, Caterina La Cascia, Marta Di Forti

Abstract read
In one paragraph

Article in Pain, 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. Pooled it
  2. Article
  3. Article
  4. Article
  5. Emergency Department Patients Presenting after Oral versus Inhaled Cannabinoid use: A Retrospective Analysis.Journal of medical toxicology : official journal of the American College of Medical Toxicology · 2025
    Article
  6. The Role of Cannabis in the Development of Psychosis.Turk psikiyatri dergisi = Turkish journal of psychiatry · 2024
    Review
  7. THC and CBD: Villain versus Hero? Insights into Adolescent Exposure.International journal of molecular sciences · 2023
    Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Review
  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

5 authors.

Lucia SideliDepartment of Psychosis Studies, Institute of Psychiatry, Psychology and Neurosceince, King's College London, De Crespigny Park, Denmark Hill, London, United Kingdom.
Giulia TrottaDepartment of Psychosis Studies, Institute of Psychiatry, Psychology and Neurosceince, King's College London, De Crespigny Park, Denmark Hill, London, United Kingdom.
Edoardo SpinazzolaDepartment of Psychosis Studies, Institute of Psychiatry, Psychology and Neurosceince, King's College London, De Crespigny Park, Denmark Hill, London, United Kingdom.
Caterina La CasciaDepartment of Biomedicine, Neuroscience and Advanced Diagnostic, Palermo University, Palermo, Italy.
Marta Di FortiSocial, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom.

Funding

Medical Research Council MR/T007818/1
6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

CannabisDrug-Related Side Effects and Adverse ReactionsMarijuana AbuseBrain

Identifiers

PMID32804835
PMCPMC8216111

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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 Socratic graph.