Chest
Volume 122, Issue 3, September 2002, Pages 1086-1090
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Occupational and Environmental Lung Disease
Passive Smoking Exposure: A Risk Factor for Chronic Bronchitis and Asthma in Adults?

https://doi.org/10.1378/chest.122.3.1086Get rights and content

Objective

The effects of passive smoke exposure on respiratory health are still under debate. Therefore, we examined the risk of respiratory symptoms related to passive smoke exposure among German adults within the European Community Respiratory Health Survey.

Methods

The questionnaire data of the population-based sample (n = 1,890) were analyzed. Multiple logistic regression models were carried out for current asthma (asthma symptoms or medication), chronic bronchitis (cough with phlegm for ≥ 3 months per year), and wheezing as dependent variables, and self-reported exposure to passive smoke at home and at the workplace as independent variables after adjusting for city, age, gender, active smoking, and socioeconomic status as well as occupational exposure to dusts and/or gases.

Results

The relative odds for chronic bronchitis were significantly higher in subjects reporting involuntary tobacco smoke exposure in the workplace (odds ratio [OR], 1.90; 95% confidence interval [CI], 1.16 to 3.11). Likewise, the adjusted OR for asthma was slightly elevated (OR, 1.51; 95% CI, 0.99 to 2.32). The risk of chronic bronchitis (OR, 3.07; 95% CI, 1.56 to 6.06), asthma (OR, 2.06; 95% CI, 1.07 to 3.97), and wheezing (OR, 2.12; 95% CI, 1.25 to 3.58) increased significantly with a daily exposure of > 8 h.

Conclusion

The control of passive smoke exposure in the workplace might reduce the risk of respiratory symptoms independently of exposure to other airborne contaminants.

Section snippets

Subjects

Within the European Community Respiratory Health Survey, a population-based, cross-sectional survey including 55 centers in 23 countries,23 a representative sample of 4,500 subjects in Hamburg, Germany, and 4,990 subjects in Erfurt, Germany, who were 20 to 44 years of age was obtained from the offices of the population census. In stage I of the study, a one-page screening questionnaire was mailed to all subjects (response rate, 76.8%). All eligible subjects in Hamburg (n = 4,090) and a random

Results

The study population in its relationship to passive smoking exposure is described in Table 1. Most participants reporting involuntary tobacco smoke exposure were exposed at home and at the workplace (62.9%), with a mean (± SD) duration of 5 ± 4 h per day. Subjects reporting passive smoke exposure were less likely to have a higher educational level and to live in Erfurt. Furthermore, they were more likely to be exposed to gases and/or mine dusts at the workplace. Additionally, subjects with

Discussion

In this study, involuntary tobacco smoke exposure, especially in the workplace, was associated with the prevalence of respiratory symptoms in young adults even after adjustment for occupational exposure. The risk estimates increased significantly with the increasing duration of daily exposure to second-hand smoke.

Our study has several strengths. Since it is a population-based survey, it reflects the prevalence of respiratory symptoms as well as the exposure to ETS exposure in the general

Acknowledgment

The authors thank C. Ramin, G. Schmudde, U. Willenbrock, S. Pirstat, A. Schneider, G. Wo¨lke, and E. Beck for their help with the manuscript.

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    This article is part of the MD thesis of Kerstin Bu¨sching.

    This study has been supported by a grant from the Bundesministerium fu¨r Forschung und Technologie.

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