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. 2023 Nov 15;11(11):CD015511.
doi: 10.1002/14651858.CD015511.pub2.

Interventions to prevent or cease electronic cigarette use in children and adolescents

Affiliations

Interventions to prevent or cease electronic cigarette use in children and adolescents

Courtney Barnes et al. Cochrane Database Syst Rev. .

Abstract

Background: The prevalence of e-cigarette use has increased globally amongst children and adolescents in recent years. In response to the increasing prevalence and emerging evidence about the potential harms of e-cigarettes in children and adolescents, leading public health organisations have called for approaches to address increasing e-cigarette use. Whilst evaluations of approaches to reduce uptake and use regularly appear in the literature, the collective long-term benefit of these is currently unclear.

Objectives: The co-primary objectives of the review were to: (1) evaluate the effectiveness of interventions to prevent e-cigarette use in children and adolescents (aged 19 years and younger) with no prior use, relative to no intervention, waitlist control, usual practice, or an alternative intervention; and (2) evaluate the effectiveness of interventions to cease e-cigarette use in children and adolescents (aged 19 years and younger) reporting current use, relative to no intervention, waitlist control, usual practice, or an alternative intervention. Secondary objectives were to: (1) examine the effect of such interventions on child and adolescent use of other tobacco products (e.g. cigarettes, cigars types, and chewing tobacco); and (2) describe the unintended adverse effects of the intervention on individuals (e.g. physical or mental health of individuals), or on organisations (e.g. intervention displacement of key curricula or learning opportunities for school students) where such interventions are being implemented.

Search methods: We searched CENTRAL, Ovid MEDLINE, Ovid Embase, Ovid PsycINFO, EBSCO CINAHL, and Clarivate Web of Science Core Collection from inception to 1 May 2023. Additionally, we searched two trial registry platforms (WHO International Clinical Trials Registry Platform; US National Institutes of Health Ongoing Trials Register ClinicalTrials.gov), Google Scholar, and the reference lists of relevant systematic reviews. We contacted corresponding authors of articles identified as ongoing studies.

Selection criteria: We included randomised controlled trials (RCTs), including cluster-RCTs, factorial RCTs, and stepped-wedge RCTs. To be eligible, the primary targets of the interventions must have been children and adolescents aged 19 years or younger. Interventions could have been conducted in any setting, including community, school, health services, or the home, and must have sought to influence children or adolescent (or both) e-cigarette use directly. Studies with a comparator of no intervention (i.e. control), waitlist control, usual practice, or an alternative intervention not targeting e-cigarette use were eligible. We included measures to assess the effectiveness of interventions to: prevent child and adolescent e-cigarette use (including measures of e-cigarette use amongst those who were never-users); and cease e-cigarette use (including measures of e-cigarette use amongst children and adolescents who were e-cigarette current-users). Measures of e-cigarette use included current-use (defined as use in the past 30 days) and ever-use (defined as any lifetime use).

Data collection and analysis: Two review authors independently screened the titles and abstracts of references, with any discrepancies resolved through consensus. Pairs of review authors independently assessed the full-text articles for inclusion in the review. We planned for two review authors to independently extract information from the included studies and assess risk of bias using the Cochrane RoB 2 tool. We planned to conduct multiple meta-analyses using a random-effects model to align with the co-primary objectives of the review. First, we planned to pool interventions to prevent child and adolescent e-cigarette use and conduct two analyses using the outcome measures of 'ever-use' and 'current-use'. Second, we planned to pool interventions to cease child and adolescent e-cigarette use and conduct one analysis using the outcome measure of 'current-use'. Where data were unsuitable for pooling in meta-analyses, we planned to conduct a narrative synthesis using vote-counting approaches and to follow the Cochrane Handbook for Systematic Reviews of Interventions and the Synthesis Without Meta-analysis (SWiM) guidelines.

Main results: The search of electronic databases identified 7141 citations, with a further 287 records identified from the search of trial registries and Google Scholar. Of the 110 studies (116 records) evaluated in full text, we considered 88 to be ineligible for inclusion for the following reasons: inappropriate outcome (27 studies); intervention (12 studies); study design (31 studies); and participants (18 studies). The remaining 22 studies (28 records) were identified as ongoing studies that may be eligible for inclusion in a future review update. We identified no studies with published data that were eligible for inclusion in the review.

Authors' conclusions: We identified no RCTs that met the inclusion criteria for the review, and as such, there is no evidence available from RCTs to assess the potential impact of interventions targeting children and adolescent e-cigarette use, tobacco use, or any unintended adverse effects. Evidence from studies employing other trial designs (e.g. non-randomised) may exist; however, such studies were not eligible for inclusion in the review. Evidence from studies using non-randomised designs should be examined to guide actions to prevent or cease e-cigarette use. This is a living systematic review. We search for new evidence every month and update the review when we identify relevant new evidence. Please refer to the Cochrane Database of Systematic Reviews for the current status of this review.

PubMed Disclaimer

Conflict of interest statement

If a review author is also a contributor to a study that may be of interest to the review, that review author will not be involved in the determination of eligibility, data extraction, risk of bias assessment, and GRADE assessment. In such instances, these roles will be carried out by review authors who were not directly involved in these studies, in line with the Cochrane Conflict of Interests policy.

CBa: no interests declared.

HT: no interest declared.

SMc: SMc is Assistant Managing Editor and Method Editor for Cochrane Public Health, but has not been involved in the editorial process or assessment of this review. She has no interest to declare.

RH: no interests declared.

SLY: reports that she has published opinions in medical journals relevant to the interventions in the work. No other declarations of interest to report.

ES: reports that she has previously been contracted (paid to her institution) by the Australian Department of Health to provide a report on e‐cigarette use and trends in Australia to advise government policy, as well as contracted (paid to her institution) by the New South Wales Department of Health to assist in developing educational resources for young people regarding the risks of e‐cigarette use. ES has also published opinions in medical journals relevant to the interventions in the work.

AH: reports that she has undertaken relevant work for the World Health Organization (WHO). Activities included undertaking two systematic reviews: 1) prevalence of electronic nicotine delivery systems (ENDS)/electronic non‐nicotine delivery systems (ENNDS) use of youth; and 2) association between ENDS/ENNDS use and later tobacco uptake by youth. This work was administered to the University of Newcastle of which she is an employee. AH reports that she has published results from the work, which was conducted for the commissioned project by the WHO, in medical journals, and this work has been promoted via several channels (e.g. social media, public press, presentations) and is contributing to a report. AH reports that she is an unpaid member of two Data Monitoring and Safety Boards for National Health and Medical Research Council‐funded trials that are testing vaporised nicotine products in adults. She is an independent personnel on this board and has no connection to the study or funding, and is not compensated for this work, and the outcomes of this trial have no impact (positive or negative) on her. Her role is to act as an independent expert in public health to ensure that the studies are being conducted appropriately and safely. AH is also a Methods Editor for Cochrane Public Health, but has not been involved in the editorial process or assessment of this review.

CBi: no interests declared.

JM: no interests declared.

LW: declares that his institution has received research grants to undertake trials likely to be included in this review. LW also reports that he is the Co‐ordinating Editor of Cochrane Public Health, but has not been involved in the editorial process or assessment of this review.

Figures

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Study flow diagram.

Update of

  • doi: 10.1002/14651858.CD015511

References

References to studies excluded from this review

Abdul Halim 2022 {published data only}
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ACTRN12622001087741 {published data only}
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Conner 2020 {published data only}
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Coulter 2019 {published data only}
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De La Garza 2019 {published data only}
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England 2021 {published data only}
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Haug 2020 {published data only}
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Haug 2022 {published data only}
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ISRCTN14023111 {published data only}
    1. ISRCTN14023111. Protecting youth from interpersonal violence via implementation of the Strengthening Families Programme 10-14 in Panama. https://trialsearch.who.int/Trial2.aspx?TrialID=ISRCTN14023111 (first received 1 July 2017).
ISRCTN14041907 {published data only}
    1. ISRCTN14041907. MECHANISMS study: using game theory to assess the effects of social norms and social networks on adolescent smoking in schools. https://trialsearch.who.int/Trial2.aspx?TrialID=ISRCTN14041907 (first received 9 January 2023). - PMC - PubMed
ISRCTN85812512 {published data only}
    1. ISRCTN85812512. Rationale, design and conduct of a school-based anti-smoking intervention: the PEPITES cluster randomized trial. https://trialsearch.who.int/Trial2.aspx?TrialID=ISRCTN85812512 (first received 15 September 2014). - PMC - PubMed
Kelder 2020 {published data only}
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Kelder 2021 {published data only}
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Kimber 2020 {published data only}
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Kowitt 2022 {published data only}
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Merrill 2022 {published data only}
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Moulier 2019 {published data only}
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Mungia 2021 {published data only}
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NCT02500238 {published data only}
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NCT02949648 {published data only}
    1. NCT02949648. Electronic cigarette use and quitting in youth. https://clinicaltrials.gov/ct2/show/NCT02949648 (first received 31 October 2016).
NCT03168191 {published data only}
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NCT03249428 {published data only}
    1. NCT03249428. E-cigarette inner city RCT. https://clinicaltrials.gov/ct2/show/NCT03249428 (first received 15 August 2017).
NCT03480373 {published data only}
    1. NCT03480373. Electronic cigarette use during pregnancy. https://clinicaltrials.gov/ct2/show/NCT03480373 (first received 29 March 2018).
NCT03634839 {published data only}
    1. NCT03634839. Effects of e-cigarette flavors on youth TCORS 2.0. https://clinicaltrials.gov/ct2/show/NCT03634839 (first received 17 August 2018).
NCT03682900 {published data only}
    1. NCT03682900. Expanding the Click City Tobacco prevention program to include e-cigarettes and other novel tobacco products. clinicaltrials.gov/show/NCT03682900 (first received 25 September 2018).
NCT03690427 {published data only}
    1. NCT03690427. Investigating the cardiovascular toxicity of exposure to electronic hookah vaping. https://clinicaltrials.gov/ct2/show/NCT03690427 (first received 1 October 2018).
NCT03786042 {published data only}
    1. NCT03786042. Trial on the effect of e-cigarette advertising on cigarette perceptions in adolescents. https://clinicaltrials.gov/ct2/show/NCT03786042 (first received 24 December 2018).
NCT03815591 {published data only}
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NCT04083469 {published data only}
    1. NCT04083469. Identifying student opinion leaders to lead e-cigarette interventions. https://clinicaltrials.gov/ct2/show/NCT04083469 (first received 10 September 2019).
NCT04140617 {published data only}
    1. NCT04140617. Bystanders' exposure to electronic cigarette aerosol in confined settings. https://clinicaltrials.gov/ct2/show/NCT04140617 (first received 28 October 2019).
NCT04249219 {published data only}
    1. NCT04249219. Responses to e-cigarette advertising. https://clinicaltrials.gov/ct2/show/NCT04249219 (first received 30 January 2020).
NCT04395274 {published data only}
    1. NCT04395274. Respiratory effects of e-cigarettes among youth/young adults. https://clinicaltrials.gov/ct2/show/NCT04395274 (first received 20 May 2020).
NCT04416698 {published data only}
    1. NCT04416698. Understanding risk perception, behaviour, and attitudes related to other new tobacco products among youth. https://clinicaltrials.gov/ct2/show/NCT04416698 (first received 4 June 2020).
NCT04602494 {published data only}
    1. NCT04602494. Varenicline for nicotine vaping cessation in non smoker vaper adolescents (pilot). clinicaltrials.gov/show/NCT04602494 (first received 26 October 2020).
NCT04616313 {published data only}
    1. NCT04616313. Novel pulmonary imaging of lung structure and function in e-cigarette smokers. https://clinicaltrials.gov/ct2/show/NCT04616313 (first received 4 November 2020).
NCT04661683 {published data only}
    1. NCT04661683. Secondhand effects of e-hookah aerosol. https://clinicaltrials.gov/ct2/show/NCT04661683 (first received 10 December 2020).
NCT04662658 {published data only}
    1. NCT04662658. Hyperpolarized xenon-129 MR imaging of the lung (e-cigarette). https://clinicaltrials.gov/ct2/show/NCT04662658 (first received 10 December 2020).
NCT04772014 {published data only}
    1. NCT04772014. Evaluation of the addictive potential of e-cigarettes (EVAPE). https://clinicaltrials.gov/ct2/show/NCT04772014 (first received 25 February 2021).
NCT04836455 {published data only}
    1. NCT04836455. Impact of vaping prevention advertisements. clinicaltrials.gov/show/NCT04836455 (first received 8 April 2021).
NCT04867668 {published data only}
    1. NCT04867668. Digital media for cancer control (to prevent vaping and smoking behavior). clinicaltrials.gov/show/NCT04867668 (first received 30 April 2021).
NCT04879225 {published data only}
    1. NCT04879225. Menthol and mint experimental tobacco marketplace (ETM) study. https://clinicaltrials.gov/ct2/show/NCT04879225 (first received 10 May 2021).
NCT04891939 {published data only}
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NCT04951193 {published data only}
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NCT04972513 {published data only}
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NCT04982978 {published data only}
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NCT05105555 {published data only}
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NCT05120466 {published data only}
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NCT05207033 {published data only}
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Walter 2019 {published data only}
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Zhao 2023 {published data only}
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References to ongoing studies

ACTRN12623000079640 {published data only}
    1. ACTRN12623000079640. Efficacy of a text-message based intervention in preventing adolescent e-cigarette use. www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=385130 (first received 18 December 2022).
Brinker 2016 {published data only}
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Gardner 2023 {published data only}
    1. ACTRN12623000022662. The OurFutures Vaping Program: a cluster randomised controlled trial to evaluate the efficacy of a school-based eHealth intervention to prevent e-cigarette use among adolescents. www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=385166 (first received 22 December 2022).
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Lyu 2022 {published data only}
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    1. NCT04707911. Social media intervention to stop nicotine and cannabis vaping among adolescents. clinicaltrials.gov/show/NCT04707911 (first received 13 January 2021).
NCT04040153 {published data only}
    1. NCT04040153. Guiding Good Choices for Health. clinicaltrials.gov/ct2/show/NCT04040153 (first received 31 July 2019).
NCT04054765 {published data only}
    1. NCT04054765. A virtual reality videogame for e-cigarette prevention in teens. clinicaltrials.gov/show/NCT04054765 (first received 13 August 2019).
NCT04146714 {published data only}
    1. NCT04146714. Substance use screening to encourage behavior change among young people in primary care. clinicaltrials.gov/show/NCT04146714 (first received 31 October 2019).
NCT04678245 {published data only}
    1. NCT04678245. Network intervention to prevent vaping. clinicaltrials.gov/show/NCT04678245 (first received 21 December 2020).
NCT04843501 {published data only}
    1. NCT04843501. Middle school cluster randomized controlled trial (RCT) to evaluate e-cigarette prevention program: CATCH My Breath. clinicaltrials.gov/show/NCT04843501 (first received 13 April 2021).
NCT04898075 {published data only}
    1. NCT04898075. Quit nicotine: e-cig cessation intervention. clinicaltrials.gov/show/NCT04898075 (first received 24 May 2021).
NCT04919590 {published data only}
    1. NCT04919590. Text message quit vaping intervention for adolescents. clinicaltrials.gov/show/NCT04919590 (first received 9 June 2021).
NCT05037656 {published data only}
    1. NCT05037656. Testing a school-based e-cigarette, tobacco, and betel (areca) nut use prevention curriculum for Guam youths. clinicaltrials.gov/show/NCT05037656 (first received 8 September 2021).
NCT05081843 {published data only}
    1. NCT05081843. Pittsburgh and rural area high school tobacco prevention. clinicaltrials.gov/ct2/show/study/NCT05081843 (first received 18 October 2021).
NCT05140915 {published data only}
    1. NCT05140915. Vaper to vaper: a multimodal mobile peer driven intervention to support adolescents in quitting vaping. clinicaltrials.gov/show/NCT05140915 (first received 2 December 2021).
NCT05219422 {published data only}
    1. NCT05219422. Testing ALERT with GTO in middle schools (GTO-ALERT). clinicaltrials.gov/ct2/show/NCT05219422 (first received 2 February 2022).
NCT05366790 {published data only}
    1. NCT05366790. A brief digital screening tool to address tobacco and e-cigarette use in paediatric medical care. clinicaltrials.gov/ct2/show/NCT05366790 (first received 9 May 2023).
NCT05367492 {published data only}
    1. NCT05367492. Varenicline for nicotine vaping cessation in adolescents. clinicaltrials.gov/show/NCT05367492 (first received 10 May 2022).
NCT05493982 {published data only}
    1. NCT05493982. Evaluation of the be vape free curriculum of the Tobacco Prevention Toolkit. clinicaltrials.gov/show/NCT05493982 (first received 9 August 2022).
Sanchez 2023 {published data only}
    1. Sanchez S, Deck A, Baskerville NB, Chaiton M. Supporting youth vaping cessation with the Crush the Crave smartphone app: protocol for a randomized controlled trial. JMIR Research Protocols 2023;12:e42956. - PMC - PubMed
Shin 2021 {published data only}
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Steeger 2023 {published data only}
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