Evidence map›Paper›PMID 37270936›Full record

ArticleDrug and alcohol dependence2023

Accurately classifying cannabis blunt use as tobacco-cannabis co-use versus exclusive cannabis use.

Meghan E Morean, Grace Kong, Krysten W Bold, Danielle R Davis, Suchitra Krishnan-Sarin

Abstract read
In one paragraph

Article in Drug and alcohol dependence, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–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

9 citing papers in PubMed.

  1. Article
  2. Article
  3. Putting the "Tobacco" in Tobacco-Free Blunt Wraps: Early Evidence From Adolescents Who Use Cannabis Blunts Signals a Potential Need for Regulatory Action.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2025
    Article
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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.

Meghan E MoreanDepartment of Psychiatry, Yale School of Medicine, 34 Park Street, New HavenCT06519USA. Electronic address: meghan.morean@yale.edu.
Grace KongDepartment of Psychiatry, Yale School of Medicine, 34 Park Street, New HavenCT06519USA.
Krysten W BoldDepartment of Psychiatry, Yale School of Medicine, 34 Park Street, New HavenCT06519USA.
Danielle R DavisDepartment of Psychiatry, Yale School of Medicine, 34 Park Street, New HavenCT06519USA.
Suchitra Krishnan-SarinDepartment of Psychiatry, Yale School of Medicine, 34 Park Street, New HavenCT06519USA.

Funding

Yale Clinical and Translational Science Award (U Component)UL1TR001863 · NCATS · YALE UNIVERSITY · PI John H. Krystal, LUCILA OHNO-MACHADO · 2016 to 2026
$102.9M
Yale Center for the Study of Tobacco Product Use and Addiction (YCSTP) Project 2: Addictive Threshold of Nicotine and the Impact of SweetenersU54DA036151 · NIDA · YALE UNIVERSITY · PI SUCHITRA KRISHNAN-SARIN, STEPHANIE S O'MALLEY · 2018 to 2026
$41.6M
NCATS NIH HHS UL1 TR001863NIDA NIH HHS U54 DA036151
6 · The paper itself

Abstract

backgroundHistorically, blunt use constituted tobacco-cannabis co-use based on the products available for creating blunts (e.g., hollowed-out cigars filled with cannabis). With the introduction of tobacco-free blunt wraps (e.g., hemp wraps), blunt use now may constitute tobacco-cannabis co-use or exclusive cannabis use. We examined adolescents' use of tobacco and tobacco-free blunt products and highlighted how misclassification of tobacco-cannabis co-use versus exclusive cannabis use may occur if products used to make blunts are not assessed.

methods4855 students from eight Connecticut high schools completed an online survey in 2022. Use of tobacco products for making blunts (e.g., cigarillos, tobacco blunt wraps) and tobacco-free blunt wraps were assessed as was the use of other tobacco products (e.g., e-cigarettes, cigarettes, hookah). The analytic sample comprised 475 students who endorsed lifetime blunt use.

resultsTobacco-free blunt wraps (72.6%) were the most popular product for making blunts, followed by cigarillos (56.5%), tobacco blunt wraps (49.2%), and large cigars (13.0%). When classified into mutually exclusive groups, students reported exclusive tobacco-free blunt use (32.3%), exclusive tobacco product blunt use (27.4%), or use of both tobacco product and tobacco-free blunts (40.3%). Among those exclusively using tobacco-free blunts, 13.4% endorsed no tobacco product use.

conclusionsTobacco-free blunt wraps were very popular among high school adolescents, highlighting the importance of assessing products used for making blunts. Assuming that blunts contain tobacco without considering tobacco-free blunts can lead to misclassification of blunt use as tobacco-cannabis co-use when it actually reflects exclusive cannabis use, potentially leading to inflated estimates of tobacco use. DATA AVAILABILITY: Data will be made available upon reasonable request to the corresponding author.

Indexed as

CannabisElectronic Nicotine Delivery SystemsMarijuana SmokingTobacco ProductsAdolescentCannabinoid Receptor AgonistsHumansTobacco UseCannabinoid Receptor AgonistsAdolescentBluntsCannabisMarijuanaTobaccoYouth

Identifiers

PMID37270936
PMCPMC10330737

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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.