Evidence map›Paper›PMID 33472704›Full record

ArticleAddiction science & clinical practice2021

Multiple clinical risks for cannabis users during the COVID-19 pandemic.

Ellen Mello Borgonhi, Vanessa Loss Volpatto, Felipe Ornell, Francisco Diego Rabelo-da-Ponte, Felix Henrique Paim Kessler

Open access · goldAbstract readLetter
In one paragraph

Article in Addiction science & clinical practice, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
5.5field-weighted citation impact, top 4% of its field
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

20 citing papers in PubMed, 35 citations in OpenAlex.

  1. Cannabis concentrate vaping chemistry.Frontiers in toxicology · 2025
    Review
  2. Article
  3. Substances of abuse and their effect on SAR-CoV-2 pathogenesis.NeuroImmune pharmacology and therapeutics · 2023
    Review
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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 at 1 institution in 1 country.

Ellen Mello BorgonhiCenter for Drug and Alcohol Research, Hospital de Clínicas de Porto Alegre, Universidade Federal Do Rio Grande Do Sul, Street Professor Álvaro Alvim, 400. Zip-code: 90420-020, Porto Alegre, RS, Brazil.
Vanessa Loss VolpattoCenter for Drug and Alcohol Research, Hospital de Clínicas de Porto Alegre, Universidade Federal Do Rio Grande Do Sul, Street Professor Álvaro Alvim, 400. Zip-code: 90420-020, Porto Alegre, RS, Brazil.
Felipe OrnellCenter for Drug and Alcohol Research, Hospital de Clínicas de Porto Alegre, Universidade Federal Do Rio Grande Do Sul, Street Professor Álvaro Alvim, 400. Zip-code: 90420-020, Porto Alegre, RS, Brazil.
Francisco Diego Rabelo-da-PonteCenter for Drug and Alcohol Research, Hospital de Clínicas de Porto Alegre, Universidade Federal Do Rio Grande Do Sul, Street Professor Álvaro Alvim, 400. Zip-code: 90420-020, Porto Alegre, RS, Brazil.
Felix Henrique Paim KesslerCenter for Drug and Alcohol Research, Hospital de Clínicas de Porto Alegre, Universidade Federal Do Rio Grande Do Sul, Street Professor Álvaro Alvim, 400. Zip-code: 90420-020, Porto Alegre, RS, Brazil. fkessler@hcpa.edu.br.ORCID 0000-0001-7059-2564
Universidade Federal do Rio Grande do Sul · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The pandemic caused by Sars-CoV-2 (COVID-19) has been a great concern for public and mental health systems worldwide. The identification of risk groups is essential for the establishment of preventive and therapeutic strategies, as for substance users. During COVID-19 pandemic, there was an increase in the use of psychoactive substances during the lockdown, including cannabis. This commentary reviews relevant findings and discusses scientific evidence on the risks of worse clinical and psychiatric complications due to coronavirus disease COVID-19 in subjects who use cannabis. Although they are not included as a risk group in the health recommendations for that disease, they may have a more vulnerable respiratory system to viral diseases. There are certain similarities between the harmful cardiovascular and respiratory effects of cannabis use and those of smoking. Due to the different modes of smoking, cannabis chemicals are retained in the body for longe and may also contain other toxic substances such as tar, a substance found in tobacco and which has been associated with the development of lung cancer, bronchitis and pulmonary emphysema. Therefore, we discuss if individuals who use cannabis regularly might be more vulnerable to COVID-19 infection. This population deserves more clinical attention worldwide and this manuscript can help clinicians become more aware of cannabis risks during pandemics and develop specific intervention strategies.

Indexed as

CannabisCardiovascular DiseasesCOVID-19Heart RateHumansMarijuana SmokingCannabisClinical risksCovid19

Identifiers

PMID33472704
PMCPMC7816063
OpenAlexW3122164415

What OpenQuestion 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 OpenQuestion graph.