Evidence map›Paper›PMID 26942764›Full record

ArticlePloS one2016

Association between Electronic Cigarette Use and Asthma among High School Students in South Korea.

Jun Ho Cho, Samuel Y Paik

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04616313 (Novel Pulmonary Imaging of Lung Structure and Function in Symptomatic and Asymptomatic E-cigarette Smokers), which is not on this map. Cited by 106 papers, 9 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
106citing papers in PubMed, 9 pooled it
11.7field-weighted citation impact, top 1% 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.

NCT04616313 recruitingnot on this mapstarted 2023, after this paper: background citation

Novel Pulmonary Imaging of Lung Structure and Function in Symptomatic and Asymptomatic E-cigarette Smokers

TypeobservationalSponsorWestern University, CanadaRan2023 to 2027Enrolled150ConditionsE Cigarette UseArmsHyperpolarized Xenon-129 MRI of the lungs, Computed Tomography (CT), Pulmonary Function Tests (PFT), Cardiopulmonary exercise testing (CPET), Sputum analysis
3 · Its place in the literature

Who cites it

106 citing papers in PubMed, 9 syntheses or guidelines pooled it, 202 citations in OpenAlex.

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  8. Overview of Electronic Nicotine Delivery Systems: A Systematic Review.American journal of preventive medicine · 2017
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46 more citing papers are in PubMed but not listed here.

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

2 authors at 2 institutions in 2 countries.

Jun Ho ChoDepartment of Public Health Administration, Hanyang Women's University, 17 Haeng-Dong Sungdong-Ku, Seoul 133-793, Republic of Korea.
Samuel Y PaikLawrence Livermore National Laboratory, 7000 East Ave, Livermore, California 94550, United States of America.
Hanyang Women's University · KRLawrence Livermore National Laboratory · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesLittle is known about health outcomes related to electronic cigarette (EC) use, despite its growing popularity. The aim of this study is to investigate the association between EC use and asthma.

methodsThe study design is a cross-sectional study. A total of 35,904 high school students were included as the final study population. The presence of asthma was based on a student's self-reported doctor diagnosis of asthma in the past 12 months.

resultsPrevalence rates of asthmatics in 'current EC users' (n = 2,513), 'former EC users' (n = 2,078), and 'never EC users' (n = 31,313), were 3.9% (n = 98), 2.2% (n = 46) and 1.7% (n = 530), respectively. Comparing 'current EC' users with 'never EC' users, the unadjusted OR for asthma was 2.36 (95% CI: 1.89-2.94). In order to control for the effect of conventional cigarette (CC) smoking, after stratifying the subjects by the three CC smoking categories (never CC, former CC, and current CC), within the 'never CC' category, the unadjusted OR for asthma for 'current EC' users was 3.41 (95% CI: 1.79-6.49), and the adjusted OR was 2.74 (95% CI: 1.30-5.78). Severe asthma was reflected by the number of days absent from school due to asthma symptoms; current EC users had the highest adjusted OR for severe asthma compared to 'never EC' users.

conclusionsWhen compared to a reference population of high school students in South Korea, EC users have an increased association with asthma and are more likely to have had days absent from school due to severe asthma symptoms. In conclusion, the results indicate that EC use may be a risk factor for asthma. The results may be useful in developing a scientific basis for the evaluation of a potential health hazard by EC.

Indexed as

AdolescentAsthmaElectronic Nicotine Delivery SystemsFemaleHumansLogistic ModelsMaleRepublic of KoreaSchoolsStudents

Identifiers

PMID26942764
PMCPMC4778916
OpenAlexW2290893644

What OpenQuestion holds

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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.