Evidence map›Paper›PMID 32437443›Full record

ArticlePloS one2020

Characterizing motivations for cannabis use in a cohort of people who use illicit drugs: A latent class analysis.

Stephanie Lake, Ekaterina Nosova, Jane Buxton, Zach Walsh, M Eugenia Socías, Kanna Hayashi, Thomas Kerr, M J Milloy

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

27 citing papers in PubMed, 39 citations in OpenAlex.

  1. Day-level latent classes of alcohol and cannabis use motives: Associations by combined use, level of use, and consequences.Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors · 2026
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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

8 authors at 3 institutions in 1 country.

Stephanie LakeBritish Columbia Centre on Substance Use, Vancouver, BC, Canada.ORCID 0000-0002-4095-8016
Ekaterina NosovaBritish Columbia Centre on Substance Use, Vancouver, BC, Canada.ORCID 0000-0002-4474-2757
Jane BuxtonSchool of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.
Zach WalshDepartment of Psychology, University of British Columbia, Kelowna, BC, Canada.
M Eugenia SocíasBritish Columbia Centre on Substance Use, Vancouver, BC, Canada.
Kanna HayashiBritish Columbia Centre on Substance Use, Vancouver, BC, Canada.ORCID 0000-0003-3843-2928
Thomas KerrBritish Columbia Centre on Substance Use, Vancouver, BC, Canada.
M J MilloyBritish Columbia Centre on Substance Use, Vancouver, BC, Canada.ORCID 0000-0003-3821-6221
University of British Columbia · CABritish Columbia Centre on Substance Use · CASimon Fraser University · CA

Funding

Vancouver Drug Users Study: The Impacts of Evolving Drug Use Patterns on HIV/AIDSU01DA038886 · NIDA · UNIVERSITY OF BRITISH COLUMBIA · PI DEBECK, KORA, HAYASHI, KANNA · 2015 to 2024
$12.1M
Impacts of universal access to HIV/AIDS care among HIV+ injection drug usersU01DA021525 · NIDA · UNIVERSITY OF BRITISH COLUMBIA · PI MILLOY, M-J · 2017 to 2024
$4.3M
Mentoring the next generation of addiction clinician scientists while responding to the opioid epidemicR25DA037756 · NIDA · UNIVERSITY OF BRITISH COLUMBIA · PI FAIRBAIRN, NADIA · 2014 to 2023
$3.6M
CIHRNIDA NIH HHS R25 DA037756NIDA NIH HHS U01 DA021525NIDA NIH HHS U01 DA038886
6 · The paper itself

Abstract

backgroundCannabis use is common among marginalized people who use illicit drugs (PWUD) but reasons for use remain poorly investigated. We sought to explore how different intentions for cannabis use relate to social, structural, and behavioural factors among PWUD in Vancouver, Canada.

methodsWe used data from cannabis-using participants in two community-recruited prospective cohort studies of PWUD. Using latent class analysis, we identified discrete cannabis-using groups based on self-reported intentions for use. Generalized estimating equations were used to examine correlates of class membership.

resultsBetween June 2016 and December 2018, 2,686 observations from 897 participants cannabis-using PWUD were analyzed. Four latent classes of cannabis use emerged: Class 1 (31.6%), characterized by non-medical purposes; Class 2 (37.5%), characterized by non-pain therapeutic use (e.g., stress, nausea/loss of appetite, and insomnia); characterized by Class 3 (21.9%) predominantly pain relief; and Class 4 (9.0%), characterized by a wide range of therapeutic uses in addition to pain management, including insomnia, stress, nausea/loss of appetite, and harm reduction. Class-specific structural, substance-, and health-related differences were observed, including indicators of better physical and mental health among the "recreational" class, despite evidence of more structural vulnerabilities (e.g., homelessness, incarceration).

conclusionsOur findings demonstrate a wide spectrum of motivations for cannabis use among PWUD. We observed important health-related differences between latent classes, demonstrating possible unmet healthcare needs among PWUD reporting therapeutic cannabis use. These findings inform ongoing policy surrounding access to cannabis for harm reduction purposes and applications of medical cannabis for PWUD.

Indexed as

MotivationAdultCanadaDrug UsersFemaleHumansLatent Class AnalysisMaleMarijuana SmokingMarijuana UseMiddle AgedPain Management

Identifiers

PMID32437443
PMCPMC7241718
OpenAlexW3028313533

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.