Evidence map›Paper›PMID 34105208›Full record

Trial reportAddiction (Abingdon, England)2022

Changes in dependence, withdrawal, and craving among adult smokers who switch to nicotine salt pod-based e-cigarettes.

Eleanor L S Leavens, Nicole L Nollen, Jasjit S Ahluwalia, Matthew S Mayo, Myra Rice, Emma I Brett, Kim Pulvers

Open access · greenAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Addiction (Abingdon, England), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 6 pooled it
2.3field-weighted citation impact, top 12% 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, 6 syntheses or guidelines pooled it, 26 citations in OpenAlex.

  1. Electronic cigarettes for smoking cessation.The Cochrane database of systematic reviews · 2026
    Pooled it
  2. Electronic cigarettes for smoking cessation.The Cochrane database of systematic reviews · 2025
    Pooled it
  3. Electronic cigarettes for smoking cessation.The Cochrane database of systematic reviews · 2025
    Pooled it
  4. Electronic cigarettes for smoking cessation.The Cochrane database of systematic reviews · 2024
    Pooled it
  5. Electronic cigarettes for smoking cessation.The Cochrane database of systematic reviews · 2022
    Pooled it
  6. Electronic cigarettes for smoking cessation.The Cochrane database of systematic reviews · 2021
    Pooled it
  7. Patterns of e-Cigarette Use and Smoking Cessation Outcomes: Secondary Analysis of a Large Randomised Controlled Trial to Inform Clinical Advice.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2026
    Trial
  8. Standardized research electronic cigarette acceptability among adult men and women who smoke combustible cigarettes.Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors · 2025
    Trial
  9. Using Pod Based e-Cigarettes and Nicotine Pouches to Reduce Harm for Adults With Low Socioeconomic Status Who Smoke: A Pilot Randomized Controlled Trial.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2024
    Trial
  10. Trial
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Nicotine Intake in Adult Pod E-cigarette Users: Impact of User and Device Characteristics.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2023
    Article
  17. Article
  18. Article
  19. Article
  20. Article
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

7 authors at 4 institutions in 1 country.

Eleanor L S LeavensDepartment of Population Health, University of Kansas School of Medicine, Kansas City, United States.ORCID 0000-0003-2948-2384
Nicole L NollenDepartment of Population Health, University of Kansas School of Medicine, Kansas City, United States.ORCID 0000-0002-0943-0061
Jasjit S AhluwaliaBrown University School of Public Health and Alpert Medical School.
Matthew S MayoDepartment of Biostatistics and Data Science, University of Kansas Medical Center.
Myra RiceDepartment of Psychology, California State University San Marcos.ORCID 0000-0003-0225-1316
Emma I BrettDepartment of Psychiatry and Behavioral Neuroscience, University of Chicago.ORCID 0000-0001-9092-5207
Kim PulversDepartment of Psychology, California State University San Marcos.
California State University, San Marcos · USUniversity of Kansas · USBrown University · USUniversity of Kansas Medical Center · US

Funding

Using wearables and EMA to examine the links between cannabis and depressionP20GM130414 · NIGMS · BROWN UNIVERSITY · PI JENNIFER W. TIDEY · 2019 to 2026
$22.0M
ALCOHOL INTERVENTION/TREATMENT OUTCOME RESEARCH TRAININGT32AA007459 · NIAAA · BROWN UNIVERSITY · PI ROBERT MIRANDA, PETER M. MONTI · 1986 to 2026
$13.3M
NRSA Training CoreTL1TR002368 · NCATS · UNIVERSITY OF KANSAS MEDICAL CENTER · PI Jennifer Lynn Goldman, NICOLE L NOLLEN · 2017 to 2026
$4.0M
Integrative Training in the Neurobiology of Addictive BehaviorsT32DA043469 · NIDA · UNIVERSITY OF CHICAGO · PI Donald Hedeker, Xiaoxi Zhuang · 2017 to 2026
$3.8M
Toxicant Exposure and Harm Perceptions in Cigarette Smokers Who Use or Do Not Use E-CigarettesSC3GM122628 · NIGMS · CALIFORNIA STATE UNIVERSITY SAN MARCOS · PI PULVERS, KIMBERLEY · 2017 to 2020
$447k
Minimizing Fall-Related Injury in Older Adults: a motor learning approachR21AG073892 · NIA · UNIVERSITY OF KANSAS MEDICAL CENTER · PI SOSNOFF, JACOB J. · 2021 to 2022
$429k
NCATS NIH HHS TL1 TR002368NIAAA NIH HHS T32 AA007459NIA NIH HHS R21 AG073892NIDA NIH HHS T32 DA043469NIGMS NIH HHS P20 GM130414NIGMS NIH HHS SC3 GM122628
6 · The paper itself

Abstract

BACKGROUND AND

aimsFor electronic cigarettes (e-cigarettes) to be a viable substitute for combustible cigarettes, it is likely that they must be rewarding enough for regular use, indicated by factors such as craving and dependence, important aspects of reinforcement. This study aimed to understand short-term changes in measures of nicotine dependence between groups differing by use trajectory in a switching trial, and within group changes of these measures.

designSecondary data analysis of one arm of an e-cigarette randomized clinical trial.

settingSan Diego, California and Kansas City, Missouri, United States.

participants114 African American (n = 60) and Latinx (n = 54) smokers (58.8% male) attempting to switch to nicotine salt pod system (NSPS) e-cigarettes in a 6-week trial. MEASUREMENTS: At week 6, participants were classified by use trajectory: exclusive smokers (n = 16), exclusive e-cigarette (n = 32), or dual users (n = 66). E-cigarette, cigarette, and total nicotine dependence (cigarette + e-cigarette), use patterns, cigarette craving and nicotine withdrawal, and cotinine were assessed at baseline and week 6 using standard measures.

findingsIn between group comparisons, exclusive e-cigarette and dual users showed greater reductions in cigarette dependence (e-cigarette: -32.38, 95% CI = -37.7,-27.1; dual: -18.48, 95% CI = -22.2,-14.7), withdrawal (e-cigarette: -6.25, 95% CI = -8.52,-3.98; dual: -3.18, 95% CI = -5.02,-1.34), craving (e-cigarette: -11.44, 95% CI = -14.2,8.7; dual: -9.59, 95% CI = -11.6,-7.59), and cigarettes per day (CPD; e-cigarette: -11.19, 95% CI = -13.1,-9.27; dual: -9.39, 95% CI = -11.3, -7.52) compared with exclusive smokers. In within group analyses, e-cigarette and dual users showed reductions in craving and withdrawal from baseline to week 6. Exclusive e-cigarette and dual users, maintained cotinine levels (all Ps > 0.05) and showed reductions in CPD and cigarette dependence (all Ps < 0.01). Findings were inconclusive regarding changes in total nicotine dependence from baseline to week 6 among exclusive e-cigarette users (P = 0.123). Dual users showed increased total nicotine dependence (P < 0.001) and smokers showed decreased total dependence (P = 0.004).

conclusionsSmokers who switch to nicotine salt pod system e-cigarettes maintain their nicotine levels and transfer their dependence, suggesting that nicotine salt pod system e-cigarettes have a similar reinforcement potential to cigarettes and facilitate switching.

Indexed as

Electronic Nicotine Delivery SystemsTobacco ProductsAdultCravingFemaleHumansMaleNicotineSmokersUnited StatesNicotineCigarette smokingdual useENDSJUULnicotine dependencereinforcement value

Identifiers

PMID34105208
PMCPMC8655025
OpenAlexW3168286110

What OpenQuestion holds

Textmetadata
LicenceTDM
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.