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 accessAbstract
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.
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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 measuredTobacco 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 measuredTobacco 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.
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Cites
World Population Prospects The 2006 Revision
Zlotnik, H. (2007) · United Nations eBooks · Cited by 7,896 · see citing works
Filmer, D. P., & Pritchett, L. H. (2001) · Demography · doi:10.2307/3088292 · Cited by 5,842 · see citing works
Statistical Analysis of Correlated Data Using Generalized Estimating Equations: An Orientation
Hanley, J. A. (2003) · American Journal of Epidemiology · doi:10.1093/aje/kwf215 · Cited by 2,185 · see citing works
WHO estimates of the causes of death in children
Bryce, J., Boschi-Pinto, C., Shibuya, K., & Black, R. E. (2005) · The Lancet · doi:10.1016/s0140-6736(05)71877-8 · Cited by 2,108 · see citing works
Use and misuse of population attributable fractions
Rockhill, B., Newman, B., & Weinberg, C. (1998) · American Journal of Public Health · doi:10.2105/ajph.88.1.15 · Cited by 1,683 · see citing works
Indoor air pollution in developing countries and acute lower respiratory infections in children
Smith, K. R. (2000) · Thorax · doi:10.1136/thorax.55.6.518 · Cited by 948 · see citing works
Cigarette Smoking and Invasive Pneumococcal Disease
Nuorti, J. P., Butler, J. C., Farley, M. M., Harrison, L. H., McGeer, A., KOLCZAK, M. S., & Breiman, R. F. (2000) · New England Journal of Medicine · doi:10.1056/nejm200003093421002 · Cited by 796 · see citing works
Pirkle, J. L. (1996) · JAMA · doi:10.1001/jama.275.16.1233 · Cited by 707 · see citing works
Gilliland, F. D., Li, Y., & Peters, J. M. (2001) · American Journal of Respiratory and Critical Care Medicine · doi:10.1164/ajrccm.163.2.2006009 · Cited by 569 · see citing works
Ezzati, M., & Kammen, D. M. (2001) · The Lancet · doi:10.1016/s0140-6736(01)05777-4 · Cited by 545 · see citing works
Global youth tobacco surveillance, 2000-2007.
Cw, W., Jones, N. R., Peruga, A., Chauvin, J., Baptiste, J., de Silva, C., Awa, F. E., Tsouros, A. D., Rahman, K., Fishburn, B., et al. (2008) · PubMed · Cited by 410 · see citing works
Gergen, P. J., Fowler, J. A., Maurer, K. R., Davis, W. W., & Overpeck, M. D. (1998) · PEDIATRICS · doi:10.1542/peds.101.2.e8 · Cited by 342 · see citing works
Confidence Limits Made Easy: Interval Estimation Using a Substitution Method
Daly, L. (1998) · American Journal of Epidemiology · doi:10.1093/oxfordjournals.aje.a009523 · Cited by 289 · see citing works
Pneumonia: the forgotten killer of children.
Wardlaw, T., Johansson, E., & Hodge, M. C. (2006) · Cited by 286 · see citing works
Pneumonia - The forgotten killer of children
Unicef, W. (2006) · Cited by 270 · see citing works
Integrated approach to child health in developing countries
Tulloch, J. (1999) · The Lancet · doi:10.1016/s0140-6736(99)90252-0 · Cited by 239 · see citing works
Modifiable risk factors for acute lower respiratory tract infections
Savitha, M. R., Nandeeshwara, S. B., Kumar, M. J. P., Farhan-ul-haque, & Raju, C. K. (2007) · The Indian Journal of Pediatrics · doi:10.1007/s12098-007-0081-3 · Cited by 166 · see citing works
Risk factors for severe acute lower respiratory tract infection in under-five children.
Broor, S., Pandey, R. M., Ghosh, M., Maitreyi, R. S., Lodha, R., Singhal, T., & Kabra, S. K. (2001) · PubMed · Cited by 155 · see citing works
Kum‐Nji, P., Meloy, L. D., & Herrod, H. G. (2006) · PEDIATRICS · doi:10.1542/peds.2005-1886 · Cited by 149 · see citing works
Abortion surveillance--United States, 2005.
Gamble, S. B., Strauss, L. T., Parker, W. Y., Cook, D. A., Zane, S. B., & Hamdan, S. (2008) · PubMed · Cited by 142 · see citing works
Lanari, M., Giovannini, M., Giuffrè, L., et al. (2002) · Pediatric Pulmonology · doi:10.1002/ppul.10047 · Cited by 130 · see citing works
Smoking Patterns of Household Members and Visitors in Homes With Children in the United States
Schuster, M. A., Franke, T. M., & Pham, C. B. (2002) · Archives of Pediatrics and Adolescent Medicine · doi:10.1001/archpedi.156.11.1094 · Cited by 127 · see citing works
Passive smoke exposure and otitis media in the first year of life. Group Health Medical Associates.
Ey, J. L., Holberg, C. J., Aldous, M. B., Wright, A. L., Martínez, F. D., & Taussig, L. M. (1995) · PubMed · Cited by 111 · see citing works
Passive Smoke Exposure and Otitis Media in the First Year of Life
Ey, J. L., Holberg, C. J., Aldous, M. B., Wright, A. L., Martínez, F. D., & Taussig, L. M. (1995) · PEDIATRICS · doi:10.1542/peds.95.5.670 · Cited by 108 · see citing works
Childhood pneumonia mortality—a permanent global emergency
Mulholland, K. (2007) · The Lancet · doi:10.1016/s0140-6736(07)61130-1 · Cited by 107 · see citing works
A Study of Risk Factors for Pneumococcal Disease among Children in a Rural Area of West Africa
O’Dempsey, T., MCARDLE, T. F., Morris, J., et al. (1996) · International Journal of Epidemiology · doi:10.1093/ije/25.4.885 · Cited by 100 · see citing works
Risk Factors for Severe Pneumonia in Children in South Kerala: A Hospital-based Case-Control Study
Shah, N., Ramankutty, V., Premila, P. G., et al. (1994) · Journal of Tropical Pediatrics · doi:10.1093/tropej/40.4.201 · Cited by 98 · see citing works
Risk Factors for Mortality from Acute Lower Respiratory Tract Infections in Young Gambian Children
de Francisco, A., MORRIS, J., Hall, A. J., et al. (1993) · International Journal of Epidemiology · doi:10.1093/ije/22.6.1174 · Cited by 89 · see citing works
Tobacco control and gender in south-east Asia. Part II: Singapore and Vietnam
Morrow, M. (2003) · Health Promotion International · doi:10.1093/heapro/dag403 · Cited by 88 · see citing works
Jenkins, C. N. H. (1997) · JAMA · doi:10.1001/jama.277.21.1726 · Cited by 87 · see citing works
Cotinine levels and self-reported smoking status in patients attending a bronchoscopy clinic
Lewis, S. J., Cherry, N., Niven, R. M., Barber, P. V., Wilde, K., & Povey, A. C. (2003) · Biomarkers · doi:10.1080/1354750031000120125 · Cited by 86 · see citing works
Jedrychowski, W. A., & Flak, E. (1997) · Environmental Health Perspectives · doi:10.1289/ehp.97105302 · Cited by 83 · see citing works
RE: "CONFIDENCE LIMITS MADE EASY: INTERVAL ESTIMATION USING A SUBSTITUTION METHOD"
Greenland, S. (1999) · American Journal of Epidemiology · doi:10.1093/oxfordjournals.aje.a009905 · Cited by 71 · see citing works
Environmental tobacco smoke exposure in school children: parent report and urine cotinine measures
Boyacı, H., Etiler, N., Duman, C., et al. (2006) · Pediatrics International · doi:10.1111/j.1442-200x.2006.02225.x · Cited by 70 · see citing works
Fatmi, Z., & White, F. (2002) · International Journal of Infectious Diseases · doi:10.1016/s1201-9712(02)90164-5 · Cited by 59 · see citing works
Overpeck, M. D., & Moss, A. J. (1991) · PsycEXTRA Dataset · doi:10.1037/e608762007-001 · Cited by 41 · see citing works
Childhood pneumonia - preventing the world's biggest killer of children
Weber, M. (2007) · Bulletin of the World Health Organization · doi:10.2471/blt.07.044032 · Cited by 34 · see citing works
Dong, G., Cao, Y., Ding, H.-L., Ma, Y., Jin, J., Zhao, Y.-D., & He, Q.-C. (2007) · Indoor Air · doi:10.1111/j.1600-0668.2007.00495.x · Cited by 24 · see citing works
Jedrychowski, W. A., & Flak, E. (1997) · Environmental Health Perspectives · doi:10.2307/3433267 · Cited by 13 · see citing works
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Gibbs, K., Collaco, J. M., & McGrath-Morrow, S. A. (2016) · Chest · doi:10.1378/chest.15-1858 · Cited by 201 · see citing works
Ota, E., Haruna, M., Suzuki, M., Anh, D. D., Tho, L. H., Tam, N. T. T., Thiem, V. D., Anh, C. N. T. H., Isozaki, M., Shibuya, K., et al. (2011) · Bulletin of the World Health Organization · doi:10.2471/blt.10.077982 · Cited by 185 · see citing works
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- 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
- bronze
- doi.org
- 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
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