Evidence map›Paper›PMID 33049064›Full record

ArticleNicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco2021

Associated Changes in E-cigarette Puff Duration and Cigarettes Smoked per Day.

Theodore L Wagener, Jason A Avery, Eleanor L S Leavens, W Kyle Simmons

Registry-linked trialOpen access · greenAbstract read
In one paragraph

Article in Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05887947 (Impact of E-cigarette Nicotine Concentration on Compensation, Cigarette Smoking, and Biomarkers of Exposure and Harm in Diverse Smokers), which is not on this map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.8field-weighted citation impact, top 27% 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.

NCT05887947 nacompletednot on this mapstarted 2023, after this paper: background citation

Impact of E-cigarette Nicotine Concentration on Compensation, Cigarette Smoking, and Biomarkers of Exposure and Harm in Diverse Smokers

TypeinterventionalSponsorUniversity of Kansas Medical CenterRan2023 to 2024Enrolled52ConditionsSmoking CessationArmsElectronic Cigarette with 5% Nicotine Concentration, Electronic Cigarette with 1.8% Nicotine Concentration
3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 16 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Trial
  4. Article
  5. Article
  6. Effects of Very Low Nicotine Content Cigarettes and Nicotine Vaping Device Characteristics on Choices to Smoke, Vape, or Abstain in Early Young Adults.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2025
    Article
  7. Article
  8. Article
  9. 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

4 authors at 4 institutions in 1 country.

Theodore L WagenerDepartment of Internal Medicine and Center for Tobacco Research, Comprehensive Cancer Center, The Ohio State University and James Cancer Hospital, Columbus, OH.
Jason A AveryLaboratory of Brain and Cognition, National Institute of Mental Health, Bethesda, MD.
Eleanor L S LeavensDepartment of Population Health, University of Kansas School of Medicine, Kansas City, KS.
W Kyle SimmonsDepartment of Pharmacology and Physiology, Oklahoma State University Center for Health Sciences, Tulsa, OK.
National Institute of Mental Health · USOklahoma State University Center for Health Sciences · USThe Ohio State University Comprehensive Cancer Center – Arthur G. James Cancer Hospital and Richard J. Solove Research Institute · USUniversity of Kansas · US

Funding

Examination of First and Second Generation E-cigarettesR01CA204891 · NCI · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI WAGENER, THEODORE LEE · 2016 to 2020
$3.0M
Switching to the SREC: evaluating risk reduction among quitline treatment failuresU01DA045537 · NIDA · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI WAGENER, THEODORE LEE · 2018 to 2020
$1.6M
Addiction and Behavior Related to Menthol Cigarette SubstitutesR21DA046333 · NIDA · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI VILLANTI, ANDREA, WAGENER, THEODORE LEE · 2018 to 2019
$453k
NCI NIH HHS R01 CA204891NIDA NIH HHS R21 DA046333NIDA NIH HHS U01 DA045537
6 · The paper itself

Abstract

introductionTo examine whether changes in select measures of e-cigarette puffing topography are associated with changes in smoking behavior.

methodsSixteen current cigarette smokers were instructed to completely switch from smoking combustible cigarettes to using e-cigarettes over a 2-week period. The study was completed in the Southern Midwestern region of the United States. Measures included demographics, smoking history, and cigarette dependence, as well as baseline and 2-week follow-up self-reported cigarettes per day, cigarette craving and urges, exhaled carbon monoxide readings, and e-cigarette usage data (puff number, puffing time, and average puff duration) collected via the e-cigarette built-in puff counter.

resultsOver the 2-week switching period, participants significantly reduced their cigarettes per day (~80% reduction, p < .0001). Although the number of e-cigarette puffs/day remained relatively stable (p > .05), the average total e-cigarette daily puffing time increased significantly (p = .001). Users' average puff duration increased by 91 ms/puff/d (p < .001). The percentage decrease in cigarettes smoked per day was significantly and directly related to the slope of subjects' average puff duration over time (r(13) = .62, p = .01), such that as cigarettes per day decreased, puff duration increased. Self-reported smoking urges remained relatively stable from baseline to the end of the 2-week period (p > .05).

conclusionsAmong smokers switching to an e-cigarette, greater increases in e-cigarette puff duration was associated with greater reductions in cigarette smoking. IMPLICATIONS: The current study is one of the first to examine changes in smokers' e-cigarette puffing behavior and associated changes in cigarette consumption as they attempt to completely switch to e-cigarettes. During a 2-week switching period, participants reduced their cigarettes per day. Moreover, although e-cigarette puffs per day remained relatively stable, users' average puff duration increased significantly. Greater increases in e-cigarette puff duration were associated with greater reductions in cigarette smoking. Understanding how to effectively use an e-cigarette to best reduce and eventually quit smoking will be necessary as smokers increasingly turn to these products to facilitate possible cessation.

Indexed as

AdultCarbon MonoxideCigarette SmokingElectronic Nicotine Delivery SystemsFemaleHumansMaleSelf ReportSmokersTime FactorsUnited StatesVapingCarbon Monoxide

Identifiers

PMID33049064
PMCPMC8135414
OpenAlexW3092038950

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.