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Frequency–risk relationships between second-hand smoke exposure and respiratory symptoms among adolescents: a cross-sectional study in South China
OBJECTIVES: Although previous studies have suggested an association between second-hand smoke (SHS) exposure and respiratory symptoms, current evidence is inconsistent. Additionally, it remains unclear whether there are frequency–risk relationships between SHS exposure and respiratory symptoms among...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BMJ Publishing Group
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5892781/ https://www.ncbi.nlm.nih.gov/pubmed/29615447 http://dx.doi.org/10.1136/bmjopen-2017-019875 |
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author | Chen, Zhiyao Liu, Guocong Chen, Jianying Li, Shunming Jiang, Ting Xu, Bin Ye, Xiaohua |
author_facet | Chen, Zhiyao Liu, Guocong Chen, Jianying Li, Shunming Jiang, Ting Xu, Bin Ye, Xiaohua |
author_sort | Chen, Zhiyao |
collection | PubMed |
description | OBJECTIVES: Although previous studies have suggested an association between second-hand smoke (SHS) exposure and respiratory symptoms, current evidence is inconsistent. Additionally, it remains unclear whether there are frequency–risk relationships between SHS exposure and respiratory symptoms among adolescents. METHODS: A cross-sectional survey was conducted using a stratified cluster sampling method to obtain a representative sample of high school students in Guangzhou, China. The respiratory symptoms were defined as persistent cough or sputum for three consecutive months during the past 12 months. Self-reported SHS exposure was defined as non-smokers' inhalation of the smoke exhaled from smokers on ≥1 day a week in the past 7 days. The univariable and multivariable logistic regression models were fitted to explore the potential frequency–risk relationships between SHS exposure and respiratory symptoms. RESULTS: Among 3575 students, the overall prevalence of SHS exposure was 69.2%, including 49.5% for SHS in public places, 34.5% in homes, 22.7% in indoor campuses and 29.2% in outdoor campuses. There were significantly increased risks of having respiratory symptoms corresponding to SHS exposure in public places (OR=1.60, 95% CI 1.30 to 1.95), in homes (OR=1.53, 95% CI 1.25 to 1.87), in indoor campuses (OR=1.43, 95% CI 1.14 to 1.79) and in outdoor campuses (OR=1.37, 95% CI 1.10 to 1.69) using no exposure as reference. Notably, we observed monotonic frequency–risk relationships between setting-specific(eg, homes, public places and campuses) SHS exposure and respiratory symptoms. CONCLUSION: Our findings suggest that setting-specific SHS exposure is associated with a significant, dose-dependent increase in risk of respiratory symptoms. |
format | Online Article Text |
id | pubmed-5892781 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | BMJ Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-58927812018-04-13 Frequency–risk relationships between second-hand smoke exposure and respiratory symptoms among adolescents: a cross-sectional study in South China Chen, Zhiyao Liu, Guocong Chen, Jianying Li, Shunming Jiang, Ting Xu, Bin Ye, Xiaohua BMJ Open Smoking and Tobacco OBJECTIVES: Although previous studies have suggested an association between second-hand smoke (SHS) exposure and respiratory symptoms, current evidence is inconsistent. Additionally, it remains unclear whether there are frequency–risk relationships between SHS exposure and respiratory symptoms among adolescents. METHODS: A cross-sectional survey was conducted using a stratified cluster sampling method to obtain a representative sample of high school students in Guangzhou, China. The respiratory symptoms were defined as persistent cough or sputum for three consecutive months during the past 12 months. Self-reported SHS exposure was defined as non-smokers' inhalation of the smoke exhaled from smokers on ≥1 day a week in the past 7 days. The univariable and multivariable logistic regression models were fitted to explore the potential frequency–risk relationships between SHS exposure and respiratory symptoms. RESULTS: Among 3575 students, the overall prevalence of SHS exposure was 69.2%, including 49.5% for SHS in public places, 34.5% in homes, 22.7% in indoor campuses and 29.2% in outdoor campuses. There were significantly increased risks of having respiratory symptoms corresponding to SHS exposure in public places (OR=1.60, 95% CI 1.30 to 1.95), in homes (OR=1.53, 95% CI 1.25 to 1.87), in indoor campuses (OR=1.43, 95% CI 1.14 to 1.79) and in outdoor campuses (OR=1.37, 95% CI 1.10 to 1.69) using no exposure as reference. Notably, we observed monotonic frequency–risk relationships between setting-specific(eg, homes, public places and campuses) SHS exposure and respiratory symptoms. CONCLUSION: Our findings suggest that setting-specific SHS exposure is associated with a significant, dose-dependent increase in risk of respiratory symptoms. BMJ Publishing Group 2018-04-03 /pmc/articles/PMC5892781/ /pubmed/29615447 http://dx.doi.org/10.1136/bmjopen-2017-019875 Text en © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted. This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/ |
spellingShingle | Smoking and Tobacco Chen, Zhiyao Liu, Guocong Chen, Jianying Li, Shunming Jiang, Ting Xu, Bin Ye, Xiaohua Frequency–risk relationships between second-hand smoke exposure and respiratory symptoms among adolescents: a cross-sectional study in South China |
title | Frequency–risk relationships between second-hand smoke exposure and respiratory symptoms among adolescents: a cross-sectional study in South China |
title_full | Frequency–risk relationships between second-hand smoke exposure and respiratory symptoms among adolescents: a cross-sectional study in South China |
title_fullStr | Frequency–risk relationships between second-hand smoke exposure and respiratory symptoms among adolescents: a cross-sectional study in South China |
title_full_unstemmed | Frequency–risk relationships between second-hand smoke exposure and respiratory symptoms among adolescents: a cross-sectional study in South China |
title_short | Frequency–risk relationships between second-hand smoke exposure and respiratory symptoms among adolescents: a cross-sectional study in South China |
title_sort | frequency–risk relationships between second-hand smoke exposure and respiratory symptoms among adolescents: a cross-sectional study in south china |
topic | Smoking and Tobacco |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5892781/ https://www.ncbi.nlm.nih.gov/pubmed/29615447 http://dx.doi.org/10.1136/bmjopen-2017-019875 |
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