Evidence map›Paper›PMID 33998866›Full record

ArticleCannabis and cannabinoid research2022

Knowledge of Tetrahydrocannabinol and Cannabidiol Levels Among Cannabis Consumers in the United States and Canada.

David Hammond, Samantha Goodman

Open access · greenAbstract read
In one paragraph

Article in Cannabis and cannabinoid research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
2.9field-weighted citation impact, top 9% 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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Adherence to Lower-Risk Cannabis Use Guidelines among Canadian college students: a regression analysis.Health promotion and chronic disease prevention in Canada : research, policy and practice · 2026
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  10. Prevalence of cannabidiol use and correlates in U.S. adults.Drug and alcohol dependence reports · 2024
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  14. Self-reported knowledge of tetrahydrocannabinol and cannabidiol concentration in cannabis products among cancer patients and survivors.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2024
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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

2 authors at 1 institution in 1 country.

David HammondSchool of Public Health and Health Systems, University of Waterloo, Waterloo, Canada.
Samantha GoodmanSchool of Public Health and Health Systems, University of Waterloo, Waterloo, Canada.
University of Waterloo · CA

Funding

CIHR PJT-153342
6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

CannabidiolCannabinoidsCannabisHallucinogensAnalgesicsCannabinoid Receptor AgonistsDronabinolHumansUnited StatesAnalgesicsCannabidiolCannabinoid Receptor AgonistsCannabinoidsDronabinolHallucinogensCanadacannabidiolcannabistetrahydrocannabinolUnited States

Identifiers

PMID33998866
PMCPMC9225412
OpenAlexW3097711688

What OpenQuestion holds

Textmetadata
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.