Grant Number:	5R01CA190025-05 Interpret this number
Primary Investigator:	Piper, Megan
Organization:	University Of Wisconsin-Madison
Project Title:	E-CIGARETTES: Dynamic Patterns of Use and Health Effects
Fiscal Year:	2019

DESCRIPTION (provided by applicant): Smoking and tobacco dependence cause myriad diseases and almost half a million deaths in the United States each year, including one-third of all cancer deaths. A new technology, electronic cigarettes (e-cigs), which allow the user to inhale nicotine vapor, has seen rapid adoption in the US. The extant data on e-cig use and its effects are extremely limited at a time when regulatory policies are being considered. The proposed research will provide in-depth, longitudinal data, based on real-time reports, which will address key priorities for the US Food and Drug Administration, including understanding the relations between e-cig use and: 1) nicotine dependence; 2) reductions in conventional cigarette (CC) use; 3) health-related outcomes such as biomarkers of exposure and carcinogens and acute and long-term pulmonary health; and 4) attempts to quit CC use and the success of those attempts. Specifically, we will conduct a 2-year longitudinal cohort study comprising smokers who exclusively smoke CCs (N=150) and dual users of e-cigs and CCs (N=250). We will use state-of- the-art ecological momentary assessments to determine: 1) dynamic patterns of e-cig and CC use and related outcomes (e.g., dependence, withdrawal symptoms, reward value, and CC quit attempts and quitting success); 2) episodic (affective, contextual, social) and stable person-factor (lifestyle factors, demographics) variables that covary meaningfully with e-cig and CC use and related outcomes; and 3) targeted biomarkers of tobacco and carcinogen exposure as well as other health-related outcomes (e.g., pulmonary function). Both within- subjects data (from the dual use group) and intergroup comparisons (dual use vs. exclusive CC use) will allow us to use multiple powerful analytic approaches with this unique and informative dataset. This research will provide essential information to inform regulatory bodies, as well as researchers, clinicians, and tobacco users, about the patterns of real-world e-cig use and how such use is related to CC smoking and the health risks caused by smoking. Thus, this innovative research will collect real-time data that should provide a strong empirical foundation to examine the public health effects of e-cig use during this critical period of emerging policy discussions.




Dependence motives and use contexts that predicted smoking cessation and vaping cessation: A two-year longitudinal study with 13 waves.
Authors: Nam J.K. , Piper M.E. , Tong Z. , Li R. , Yang J.J. , Jorenby D.E. , Buu A. .
Source: Drug and alcohol dependence, 2023-09-01; 250, p. 110871.
EPub date: 2023-06-22.
PMID: 37406572
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Associations of Demographics, Dependence, and Biomarkers With Transitions in Tobacco Product Use in a Cohort of Cigarette Users and Dual Users of Cigarettes and E-cigarettes.
Authors: Shafie-Khorassani F. , Piper M.E. , Jorenby D.E. , Baker T.B. , Benowitz N.L. , Hayes-Birchler T. , Meza R. , Brouwer A.F. .
Source: Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco, 2023-02-09; 25(3), p. 462-469.
PMID: 36037523
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Subtypes of Dual Users of Combustible and Electronic Cigarettes: Longitudinal Changes in Product Use and Dependence Symptomatology.
Authors: Buu A. , Tong Z. , Cai Z. , Li R. , Yang J.J. , Jorenby D.E. , Piper M.E. .
Source: Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco, 2023-02-09; 25(3), p. 438-443.
PMID: 35738022
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A new statistical model for longitudinal ecological momentary assessment data on dual use of electronic and combustible cigarettes.
Authors: Yang J. , Kuo J. , Su W.C. , Jorenby D.E. , Piper M.E. , Buu A. .
Source: The American journal of drug and alcohol abuse, 2022-09-03; 48(5), p. 529-537.
EPub date: 2022-01-31.
PMID: 35100512
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Understanding contexts of smoking and vaping among dual users: analysis of ecological momentary assessment data.
Authors: Piper M.E. , Baker T.B. , Zwaga D. , Bolt D.M. , Kobinsky K.H. , Jorenby D.E. .
Source: Addiction (Abingdon, England), 2022 May; 117(5), p. 1416-1426.
EPub date: 2021-12-08.
PMID: 34791744
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Relations among cigarette dependence, e-cigarette dependence, and key dependence criteria among dual users of combustible and e-cigarettes.
Authors: Piper M.E. , Baker T.B. , Mermelstein R. , Benowitz N. , Jorenby D.E. .
Source: Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors, 2022 Feb; 36(1), p. 100-108.
EPub date: 2020-09-21.
PMID: 32955271
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Validating E-Cigarette Dependence Scales Based on Dynamic Patterns of Vaping Behaviors.
Authors: Buu A. , Cai Z. , Li R. , Wong S.W. , Lin H.C. , Su W.C. , Jorenby D.E. , Piper M.E. .
Source: Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco, 2021-08-18; 23(9), p. 1484-1489.
PMID: 33758949
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The association between short-term emotion dynamics and cigarette dependence: A comprehensive examination of dynamic measures.
Authors: Buu A. , Cai Z. , Li R. , Wong S.W. , Lin H.C. , Su W.C. , Jorenby D.E. , Piper M.E. .
Source: Drug and alcohol dependence, 2021-01-01; 218, p. 108341.
EPub date: 2020-10-11.
PMID: 33268228
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Changes in Use Patterns Over 1 Year Among Smokers and Dual Users of Combustible and Electronic Cigarettes.
Authors: Piper M.E. , Baker T.B. , Benowitz N.L. , Jorenby D.E. .
Source: Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco, 2020-04-21; 22(5), p. 672-680.
PMID: 31058284
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E-cigarette Dependence Measures in Dual Users: Reliability and Relations With Dependence Criteria and E-cigarette Cessation.
Authors: Piper M.E. , Baker T.B. , Benowitz N.L. , Smith S.S. , Jorenby D.E. .
Source: Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco, 2020-04-21; 22(5), p. 756-763.
PMID: 30874804
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Measuring characteristics of e-cigarette consumption among college students.
Authors: Wong S.W. , Lin H.C. , Piper M.E. , Siddiqui A. , Buu A. .
Source: Journal of American college health : J of ACH, 2019 May-Jun; 67(4), p. 338-347.
EPub date: 2018-10-05.
PMID: 29979924
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The association between e-cigarette use characteristics and combustible cigarette consumption and dependence symptoms: Results from a national longitudinal study.
Authors: Buu A. , Hu Y.H. , Piper M.E. , Lin H.C. .
Source: Addictive behaviors, 2018 Sep; 84, p. 69-74.
EPub date: 2018-04-03.
PMID: 29627636
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What a difference a day makes: differences in initial abstinence response during a smoking cessation attempt.
Authors: Piper M.E. , Vasilenko S.A. , Cook J.W. , Lanza S.T. .
Source: Addiction (Abingdon, England), 2017 Feb; 112(2), p. 330-339.
EPub date: 2016-10-28.
PMID: 27633341
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