Cited by 93Smoking Behavior and CessationPneumonia and Respiratory InfectionsPediatric health and respiratory diseases

Association of environmental tobacco smoking exposure with an increased risk of hospital admissions for pneumonia in children under 5 years of age in Vietnam

Open access
Suzuki, M, Thiem, V D, Yanai, H, Matsubayashi, T, Yoshida, L-M, Tho, L H, Minh, T T, Anh, D D +2 more·2009·Thorax

Abstract

BACKGROUND: The association between environmental tobacco smoking (ETS) and childhood pneumonia has not been established in developed or developing countries. A study was conducted to assess the effect and impact of ETS exposure on pneumonia among children in central Vietnam. METHODS: A population-based large-scale cross-sectional survey was conducted covering all residents of 33 communes in Khanh Hoa Province, the central part of Vietnam. Information on demographics, socioeconomic status and house environment, including smoking status of each household member, was collected from householders. Hospital admissions for pneumonia among children aged <5 years in each household in the previous 12 months were recorded based on caregiver's report. RESULTS: A total of 353 525 individuals living in 75 828 households were identified in the study areas. Of these, 24 781 (7.0%) were aged <5 years. The prevalence of ETS was 70.5% and the period prevalence of hospital admissions for pneumonia was 2.6%. Multiple logistic regression analysis showed that exposure to ETS was independently associated with hospital admissions for pneumonia (adjusted odds ratio 1.55, 95% CI 1.25 to 1.92). The prevalence of tobacco smoking was higher among men than women (51.5% vs 1.5%). It is estimated that 28.7% of childhood pneumonia in this community is attributable to ETS. CONCLUSIONS: Children in Vietnam are exposed to substantial levels of ETS which results in 44 000 excess hospital admissions due to pneumonia each year among children aged <5 years.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1136/thx.2008.106385

Cites

39 of 39 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Tobacco smoke exposure can cause small airway dysfunction and wheeze.

    “Tobacco smoke exposure can adversely affect lung development, cause small airway dysfunction and wheeze, and increase the frequency of upper and lower respiratory tract illnesses.[16][17][18]”

    From Impact of Tobacco Smoke and Nicotine Exposure on Lung Development (2016) · cites this paper as [16]

    The “Comparisons with other studies” section says environmental tobacco smoke exposure is related to wheeze in children. It does not address small-airway dysfunction or establish that exposure causes wheeze. Page numbers are unavailable in our copy. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • Tobacco smoke exposure can increase the frequency of upper and lower respiratory tract illnesses.

    “Tobacco smoke exposure can adversely affect lung development, cause small airway dysfunction and wheeze, and increase the frequency of upper and lower respiratory tract illnesses.[16][17][18]”

    From Impact of Tobacco Smoke and Nicotine Exposure on Lung Development (2016) · cites this paper as [16]

    The Results report more pneumonia hospital admissions among children under 5 exposed to environmental tobacco smoke, supporting an association with a lower respiratory tract illness. The paper also discusses respiratory tract infections generally, but our copy does not establish an increased frequency of upper respiratory tract illnesses; its measured outcome was pneumonia admission. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • Tobacco smoke exposure can adversely affect lung development.

    “Tobacco smoke exposure can adversely affect lung development, cause small airway dysfunction and wheeze, and increase the frequency of upper and lower respiratory tract illnesses.[16][17][18]”

    From Impact of Tobacco Smoke and Nicotine Exposure on Lung Development (2016) · cites this paper as [16]

    The Significance of study section discusses smoke-related damage to respiratory defenses, and the Abstract discusses childhood respiratory illness, but neither addresses lung development. Searches for lung development and lung growth found no passage establishing that point in our copy. (LLM, conf=0.72)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Suzuki, M., Thiem, V. D., Yanai, H., Matsubayashi, T., Yoshida, L.-M., Tho, L. H., Minh, T. T., Anh, D. D., Kilgore, P. E., & Ariyoshi, K.
Affiliations
  • Nagasaki University (JP)
  • Khanh Hoa General Hospital (VN)
  • International Vaccine Institute (KR)
Corresponding author
Yanai, H
Venue
Thorax
Publisher
BMJ
Published
2009-01-21
Volume
64
Issue
6
Pages
484-489
ISSN
0040-6376 (ISSN-L)
OpenAlex
W2116769905
Cited by
93
References
39
Citations by year
2025: 3 · 2024: 2 · 2023: 4 · 2022: 2 · 2021: 3 · 2020: 7 · 2019: 7 · 2018: 6 · 2017: 11 · 2016: 5 · 2015: 5 · 2014: 4 · 2013: 9 · 2012: 8
FWCI
5.30
Type
journal article
Language
en
Open access
Locations
  • Thorax (publishedVersion)
  • PubMed (publishedVersion)
  • Institutional Repositories DataBase (IRDB) (submittedVersion, cc-by-nc-nd)
  • Nagasaki University's Academic Output SITE (Nagasaki University) (submittedVersion, cc-by-nc-nd)
  • HighWire Press Open Archive (submittedVersion)
Funders
  • London School of Hygiene and Tropical Medicine
  • Ministry of Education, Culture, Sports, Science and Technology
Topics
  • Health Sciences › Medicine › Physiology › Smoking Behavior and Cessation
  • Health Sciences › Medicine › Epidemiology › Pneumonia and Respiratory Infections
  • Health Sciences › Health Professions › Emergency Medical Services › Pediatric health and respiratory diseases
Keywords
environmental tobacco smoke, passive smoking, pediatric pneumonia, hospitalization, children under five, attributable risk, household smoking, Khanh Hoa Province, Vietnam
MeSH terms
Cross-Sectional Studies, Developing Countries, Educational Status, Environmental Exposure, Female, Hospitalization, Housing, Humans, Infant, Male, Pneumonia, Socioeconomic Factors, Tobacco Smoke Pollution, Vietnam, Age Distribution, Sex Distribution

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review