Evidence map›Paper›PMID 38281461›Full record

ArticleAddictive behaviors2024

Classification of patterns of tobacco and cannabis co-use based on temporal proximity: A qualitative study among young adults.

Nhung Nguyen, Sabrina Islam, Karla D Llanes, Kimberly A Koester, Pamela M Ling

Abstract read
In one paragraph

Article in Addictive behaviors, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing 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

28 citing papers in PubMed.

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  11. E-cigarette and Cannabis in Social Media Influencer Marketing and Its Effect on Adolescents: A Survey-Based Experiment.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2026
    Article
  12. Article
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  15. Multilevel Correlates of Same Day Poly-Product Use/Co-Use among Adolescents Who Use Tobacco and Cannabis.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2025
    Article
  16. 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.

Nhung NguyenCenter for Tobacco Control Research and Education, University of California San Francisco, San Francisco, CA, United States; Division of General Internal Medicine, University of California San Francisco, San Francisco, CA, United States. Electronic address: nhung.nguyen@ucsf.edu.
Sabrina IslamCenter for Tobacco Control Research and Education, University of California San Francisco, San Francisco, CA, United States; Division of General Internal Medicine, University of California San Francisco, San Francisco, CA, United States.
Karla D LlanesCenter for Tobacco Control Research and Education, University of California San Francisco, San Francisco, CA, United States.
Kimberly A KoesterCenter for AIDS Prevention Studies, Division of Prevention Science, University of California, San Francisco, San Francisco, CA, United States.
Pamela M LingCenter for Tobacco Control Research and Education, University of California San Francisco, San Francisco, CA, United States; Division of General Internal Medicine, University of California San Francisco, San Francisco, CA, United States.

Funding

Clinical and Translational Science InstituteUL1TR001872 · NCATS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI COLLARD, HAROLD R, JACOBY, VANESSA · 2016 to 2025
$112.1M
PROJECT 5: IMPACT OF CHANGING TOBACCO PRODUCT USE ON HEALTHCARE COSTS FOR GENERAL AND VULNERABLE POPULATIONSU54HL147127 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI JACOB, PEYTON · 2018 to 2022
$20.4M
Understanding Smokeless Tobacco MarketingR01CA141661 · NCI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LING, PAMELA MAY · 2009 to 2019
$5.4M
Postdoctoral training in tobacco controlT32DA057216 · NIDA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI Dorothy Elinor Apollonio, Pamela May Ling · 2023 to 2026
$2.0M
NCATS NIH HHS UL1 TR001872NCI NIH HHS R01 CA141661NHLBI NIH HHS U54 HL147127NIDA NIH HHS T32 DA057216
6 · The paper itself

Abstract

purposeCo-use of tobacco and cannabis is a common and complex behavior. The lack of harmonized measures of co-use yields confusion and inconsistencies in synthesizing evidence about the health effects of co-use. We aimed to classify co-use patterns based on temporal proximity and describe preferred products and motives for each pattern in order to improve co-use surveillance.

methodsWe conducted semi-structured interviews in a sample of 34 young adults (M

resultsFour emergent patterns of co-use with increasing temporal proximity between tobacco use and cannabis use were: Same-month different-day co-use (Pattern 1); Same-day different-occasion co-use (Pattern 2); Same-occasion sequential co-use (Pattern 3); and Same-occasion simultaneous co-use (Pattern 4). Participants used various product combinations within each pattern. Similar motives for all patterns were socialization, product availability, and coping with stress/anxiety. Unique motive for temporally distant patterns (Patterns 1 and 2) was seeking substance-specific effects (e.g., stimulant effect from nicotine, relaxation effects from cannabis), while unique motives for temporally close patterns (Patterns 3 and 4) were seeking combined effects from both substances (e.g., more intense psychoactive effects, mitigating cannabis adverse effects) and behavioral trigger (e.g., cannabis use triggers tobacco use).

conclusionsOur classification of co-use patterns can facilitate consistency for measuring co-use and assessing its health impacts. Future research should also measure product types and motives for different patterns to inform intervention efforts.

Indexed as

CannabisElectronic Nicotine Delivery SystemsHallucinogensTobacco ProductsAdultFemaleHumansMaleNicotineTobacco UseYoung AdultHallucinogensNicotineCo-useE-cigarettesMarijuana smokingNicotinePolysubstance useQualitative researchYouth

Identifiers

PMID38281461
PMCPMC10923078

What OpenQuestion holds

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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.