Evidence map›Paper›PMID 41468914›Full record

SynthesisJournal of Korean medical science2025

Global Prevalence of Combustible Cigarettes and Noncombustible Nicotine or Tobacco Products Use Among Adolescents, 2014-2021.

Seohyun Hong, Yejun Son, Seokjun Kim, Soeun Kim, Hyeon Jin Kim, Hyesu Jo, Jaeyu Park, Kyeongmin Lee, Hayeon Lee, Jiseung Kang and 6 more

Abstract readMeta-Analysis
In one paragraph

Synthesis in Journal of Korean medical science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

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

2 citing papers in PubMed.

  1. Review
  2. 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

16 authors.

Seohyun Hong *Department of Medicine, Kyung Hee University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0009-0005-8111-7773
Yejun Son *Center for Digital Health, Medical Science Research Institute, Kyung Hee University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0009-0001-3939-2983
Seokjun KimDepartment of Medicine, Kyung Hee University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0009-0006-8716-7904
Soeun Kim *Center for Digital Health, Medical Science Research Institute, Kyung Hee University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0009-0009-5874-417X
Hyeon Jin KimCenter for Digital Health, Medical Science Research Institute, Kyung Hee University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0003-1286-4669
Hyesu JoCenter for Digital Health, Medical Science Research Institute, Kyung Hee University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0009-0004-1895-300X
Jaeyu ParkCenter for Digital Health, Medical Science Research Institute, Kyung Hee University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0009-0005-2009-386X
Kyeongmin LeeCenter for Digital Health, Medical Science Research Institute, Kyung Hee University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0009-0004-0379-2151
Hayeon LeeCenter for Digital Health, Medical Science Research Institute, Kyung Hee University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0009-0000-2403-6241
Jiseung KangDivision of Sleep Medicine, Harvard Medical School, Boston, MA, USA.ORCID https://orcid.org/0000-0002-3734-7572
Damiano PizzolHealth Unit, Eni, San Donato Milanese, Italy.ORCID https://orcid.org/0000-0003-4122-0774
Selin WooDepartment of Medicine, Kyung Hee University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0001-7961-2074
Lee SmithCentre for Health, Performance and Wellbeing, Anglia Ruskin University, Cambridge, UK.ORCID https://orcid.org/0000-0002-5340-9833
Jiyoung HwangDepartment of Medicine, Kyung Hee University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0002-7778-374X
Sang Youl RheeDepartment of Medicine, Kyung Hee University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0003-0119-5818
Dong Keon YonDepartment of Medicine, Kyung Hee University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0003-1628-9948

Funding

Kyung Hee University GS-1-JO-NON-20241902Kyung Hee University KHU-20242591National Research Foundation of Korea RS-2023-00248157National Research Foundation of Korea RS-2024-00460379
6 · The paper itself

Abstract

backgroundUnderstanding global patterns of adolescent noncombustible nicotine or tobacco product (NNTP) and combustible cigarette (CC) use is vital due to rising prevalence and long-term health risks, but comparative international analyses are lacking. Thus, we aimed to assess smoking prevalence and trends among adolescents in 57 countries and territories and to identify factors associated with NNTP and CC use.

methodsWe utilized World Health Organization (WHO) Global Youth Tobacco Survey data to investigate adolescent NNTP and CC use prevalence and trends globally from 2014 to 2021. We conducted a meta-analysis using random-effects models to identify the summary effect of smoking prevalence in each country. Weighted linear regression was used to calculate weighted β coefficients with 95% confidence intervals (CIs). Each analysis was stratified by sex, World Bank income category, e-cigarette regulatory policy status, and WHO Framework Convention on Tobacco Control ratification status. Finally, a hierarchical Bayesian statistical model was employed to precisely predict the prevalence rates of both CC and NNTP use up to 2045.

resultsAmong the 57 countries with 173,658 adolescents, NNTP use exhibited a higher prevalence than CC use in 31 countries. Demographic groups exhibiting higher smoking prevalence included male adolescents (NNTP use: 10.78% [95% CI, 9.38 to 12.18]; CC use: 10.36% [9.03 to 11.69]), adolescents in high-income countries (NNTP use: 11.29% [8.62 to 13.95]; CC use: 10.48% [7.27 to 13.68]), and those in countries with less restrictive policies (NNTP use: 11.18% [7.32 to 15.04]; CC use: 11.44% [7.75 to 15.13]). Global NNTP use showed an overall increase from 2014 to 2021 (β, 0.73 [0.16 to 1.30]), with a particularly notable rise among male adolescents (β, 0.81 [0.05 to 1.57]). In 2044-2045, NNTP use is expected to remain relatively stable (10.61%), while CC use is projected to show a downward trend (1.05%).

conclusionOver half of the countries exhibited a higher prevalence of NNTP use than CC use. Global smoking prevalence varied across diverse factors. NNTP use among adolescents has increased, especially among male adolescents.

Indexed as

SmokingTobacco ProductsAdolescentBayes TheoremFemaleGlobal HealthHumansMalePrevalenceAdolescentsCombustible CigarettesNoncombustible Nicotine or Tobacco ProductsTrendWorld Health Organization

Identifiers

PMID41468914
PMCPMC12748060

What OpenQuestion holds

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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.