Evidence map›Paper›PMID 32571858›Full record

ArticleBMJ open2020

Electronic cigarette use among university students aged 18-24 years in New Zealand: results of a 2018 national cross-sectional survey.

Ben Wamamili, Mark Wallace-Bell, Ann Richardson, Randolph C Grace, Pat Coope

Abstract read
In one paragraph

Article in BMJ open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 2 pooled it
–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

29 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Observational
  5. Article
  6. "Stealth Vaping Is Everywhere": The Narratives of Young Māori Adults in New Zealand.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2025
    Article
  7. Article
  8. Article
  9. Review
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  11. Protective Factors Against e-Cigarette Use Among First Nations People Aged 16-24 in the Next Generation Youth Wellbeing Study.Health promotion journal of Australia : official journal of Australian Association of Health Promotion Professionals · 2025
    Article
  12. Article
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  14. Article
  15. Article
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  17. Review
  18. Article
  19. Article
  20. Rat bronchoalveolar lavage proteome changes following e-cigarette aerosol exposures.American journal of physiology. Lung cellular and molecular physiology · 2023
    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

5 authors.

Ben WamamiliSchool of Health Sciences, University of Canterbury, Christchurch, New Zealand ben.wamamili@pg.canterbury.ac.nz.ORCID 0000-0002-3112-022X
Mark Wallace-BellSchool of Health Sciences, University of Canterbury, Christchurch, New Zealand.
Ann RichardsonSchool of Health Sciences, University of Canterbury, Christchurch, New Zealand.
Randolph C GraceSchool of Psychology, Speech and Hearing, University of Canterbury, Christchurch, New Zealand.
Pat CoopeCollege of Education, Health and Human Development, University of Canterbury, Christchurch, New Zealand.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo examine electronic cigarette use, reasons for use and perceptions of harm among university students.

designCross-sectional study.

settingUniversity students across New Zealand.

methodsWe analysed data from a 2018 cross-sectional survey of university students, weighted to account for undersampling and oversampling by gender and university size. χ

participantsThe sample comprised 1476 students: 62.3% aged 18-20 years, 37.7% aged 21-24 years; 38.6% male, 61.4% female; 7.9% Māori and 92.1% non-Māori.

results40.5% of respondents (95% CI 37.9 to 43.1) reported ever, 6.1% (4.9-7.4) current and 1.7% (1.1-2.5) daily use. Regardless of frequency, 11.5% of vapers had vaped daily for ≥1 month, 70.2% of whom used nicotine-containing devices; 80.8% reported not vaping in indoor and 73.8% in outdoor smoke-free spaces. Among ever vapers, curiosity (67.4%), enjoyment (14.4%) and quitting (2.4%) were common reasons for vaping. 76.1% (73.4-78.7) of respondents believed e-cigarettes were less harmful than cigarettes.More males than females reported vaping (ever, current, daily and daily for ≥1 month), nicotine use and belief that e-cigarettes were less harmful than cigarettes. More participants aged 18-20 years reported not vaping in outdoor smoke-free spaces, vaping out of curiosity and belief that e-cigarettes were less harmful than cigarettes, while more participants aged 21-24 years vaped daily for ≥1 month and for enjoyment. More Māori than non-Māori ever vaped. More cigarette smokers than non-smokers vaped (ever, current, daily and daily for ≥1 month), used nicotine and vaped to quit, while more non-smokers did not vape in smoke-free spaces and vaped out of curiosity.

conclusionsOur results suggest high prevalence of e-cigarette ever and current use, particularly among males and smokers. Many vaped out of curiosity and perceived e-cigarettes as less harmful than cigarettes.

Indexed as

Electronic Nicotine Delivery SystemsHealth BehaviorStudentsAdolescentCross-Sectional StudiesEthnicityFemaleHumansMaleNew ZealandUniversitiesVapingYoung Adultepidemiologypreventive medicinepublic health

Identifiers

PMID32571858
PMCPMC7311043

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.