Association between exposure to secondhand aerosol from heated tobacco products and respiratory symptoms among current non-smokers in Japan: a cross-sectional study
Objectives To investigate the association between secondhand-aerosol exposure from heated tobacco products (HTPs) and respiratory symptoms among current non-smokers.Design Cross-sectional study.Setting Internet survey conducted between 8 and 26 February 2021 in Japan.Participants Non-smoking respond...
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BMJ Publishing Group
2023-03-01
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Series: | BMJ Open |
Online Access: | https://bmjopen.bmj.com/content/13/3/e065322.full |
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author | Takahiro Tabuchi Sumiyo Okawa Takashi Yoshioka Tomohiro Shinozaki Kei Nakashima Ai Hori |
author_facet | Takahiro Tabuchi Sumiyo Okawa Takashi Yoshioka Tomohiro Shinozaki Kei Nakashima Ai Hori |
author_sort | Takahiro Tabuchi |
collection | DOAJ |
description | Objectives To investigate the association between secondhand-aerosol exposure from heated tobacco products (HTPs) and respiratory symptoms among current non-smokers.Design Cross-sectional study.Setting Internet survey conducted between 8 and 26 February 2021 in Japan.Participants Non-smoking respondents at the survey aged 15–80 years.Exposure Self-reported secondhand-aerosol exposure.Primary and secondary outcomes We defined asthma/asthma-like symptoms as a primary outcome and persistent cough as a secondary outcome. We examined the association between secondhand-aerosol exposure from HTPs and respiratory symptoms (asthma attacks/asthma-like symptoms and persistent cough). The prevalence ratio (PR) and 95% CI were calculated by using weighted, multivariable ‘modified’ Poisson regression models.Results Of the 18 839 current non-smokers, 9.8% (95% CI 8.2% to 11.7%) and 16.7% (95% CI 14.8% to 18.9%) of those who were exposed to secondhand aerosols reported asthma attacks/asthma-like symptoms and persistent cough, whereas 4.5% (95% CI 3.9% to 5.2%) and 9.6% (95% CI 8.4% to 11.0%) of those who were not, respectively. Secondhand-aerosol exposure was associated with respiratory symptoms (asthma attacks/asthma-like symptoms: PR 1.49, 95% CI 1.21 to 1.85; persistent cough: PR 1.44, 95% CI 1.21 to 1.72) after adjusting for covariates.Conclusion Secondhand-aerosol exposure from HTPs was associated with both asthma attacks/asthma-like symptoms and persistent cough. These results provide policymakers with meaningful information in the regulation of HTP use for the protection of current non-smokers. |
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institution | Directory Open Access Journal |
issn | 2044-6055 |
language | English |
last_indexed | 2024-03-12T15:14:36Z |
publishDate | 2023-03-01 |
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series | BMJ Open |
spelling | doaj.art-fce0ddb7f17f4f2eb428d510cd18d1642023-08-11T17:10:07ZengBMJ Publishing GroupBMJ Open2044-60552023-03-0113310.1136/bmjopen-2022-065322Association between exposure to secondhand aerosol from heated tobacco products and respiratory symptoms among current non-smokers in Japan: a cross-sectional studyTakahiro Tabuchi0Sumiyo Okawa1Takashi Yoshioka2Tomohiro Shinozaki3Kei Nakashima4Ai Hori5Cancer Control Center, Osaka International Cancer Institute, Osaka, JapanInstitute for Global Health Policy Research, Bureau of International Health Cooperation, National Center for Global Health and Medicine Hospital, Shinjuku-ku, Tokyo, JapanDepartment of Preventive Medicine and Public Health, Keio University School of Medicine, Shinjuku-ku, Tokyo, JapanDepartment of Information and Computer Technology, Faculty of Engineering, Tokyo University of Science, Katushika-ku, Tokyo, JapanDepartment of Pulmonology, Kameda Medical Center, Kamogawa-shi, Chiba, JapanDepartment of Global Public Health, University of Tsukuba, Tsukuba-shi, Ibaraki, JapanObjectives To investigate the association between secondhand-aerosol exposure from heated tobacco products (HTPs) and respiratory symptoms among current non-smokers.Design Cross-sectional study.Setting Internet survey conducted between 8 and 26 February 2021 in Japan.Participants Non-smoking respondents at the survey aged 15–80 years.Exposure Self-reported secondhand-aerosol exposure.Primary and secondary outcomes We defined asthma/asthma-like symptoms as a primary outcome and persistent cough as a secondary outcome. We examined the association between secondhand-aerosol exposure from HTPs and respiratory symptoms (asthma attacks/asthma-like symptoms and persistent cough). The prevalence ratio (PR) and 95% CI were calculated by using weighted, multivariable ‘modified’ Poisson regression models.Results Of the 18 839 current non-smokers, 9.8% (95% CI 8.2% to 11.7%) and 16.7% (95% CI 14.8% to 18.9%) of those who were exposed to secondhand aerosols reported asthma attacks/asthma-like symptoms and persistent cough, whereas 4.5% (95% CI 3.9% to 5.2%) and 9.6% (95% CI 8.4% to 11.0%) of those who were not, respectively. Secondhand-aerosol exposure was associated with respiratory symptoms (asthma attacks/asthma-like symptoms: PR 1.49, 95% CI 1.21 to 1.85; persistent cough: PR 1.44, 95% CI 1.21 to 1.72) after adjusting for covariates.Conclusion Secondhand-aerosol exposure from HTPs was associated with both asthma attacks/asthma-like symptoms and persistent cough. These results provide policymakers with meaningful information in the regulation of HTP use for the protection of current non-smokers.https://bmjopen.bmj.com/content/13/3/e065322.full |
spellingShingle | Takahiro Tabuchi Sumiyo Okawa Takashi Yoshioka Tomohiro Shinozaki Kei Nakashima Ai Hori Association between exposure to secondhand aerosol from heated tobacco products and respiratory symptoms among current non-smokers in Japan: a cross-sectional study BMJ Open |
title | Association between exposure to secondhand aerosol from heated tobacco products and respiratory symptoms among current non-smokers in Japan: a cross-sectional study |
title_full | Association between exposure to secondhand aerosol from heated tobacco products and respiratory symptoms among current non-smokers in Japan: a cross-sectional study |
title_fullStr | Association between exposure to secondhand aerosol from heated tobacco products and respiratory symptoms among current non-smokers in Japan: a cross-sectional study |
title_full_unstemmed | Association between exposure to secondhand aerosol from heated tobacco products and respiratory symptoms among current non-smokers in Japan: a cross-sectional study |
title_short | Association between exposure to secondhand aerosol from heated tobacco products and respiratory symptoms among current non-smokers in Japan: a cross-sectional study |
title_sort | association between exposure to secondhand aerosol from heated tobacco products and respiratory symptoms among current non smokers in japan a cross sectional study |
url | https://bmjopen.bmj.com/content/13/3/e065322.full |
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