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Int J Occup Environ Med. 2012 Oct;3(4):165-77.

Exposure to outdoor air pollution and chronic bronchitis in adults: a case-control study.

Author information

1
Lebanese University, Beirut, Lebanon. pascalesalameh1@hotmail.com

Abstract

BACKGROUND:

Although Lebanon is a highly polluted country, so far no study has specifically been designed to assess the association between outdoor air pollution and chronic bronchitis in this country.

OBJECTIVE:

To assess the association between exposure to outdoor air pollution and chronic bronchitis in Lebanon.

METHODS:

A pilot case-control study was conducted in two tertiary care hospitals. Cases consisted of patients diagnosed with chronic bronchitis by a pulmonologist and those epidemiologically confirmed. Controls included individuals free of any respiratory signs or symptoms. After obtaining informed consent, a standardized questionnaire was administered.

RESULTS:

Bivariate, stratified (over smoking status and gender) and multivariate analyses revealed that passive smoking at home (ORa: 2.56, 95% CI: 1.73-3.80) and at work (ORa: 1.89, 95% CI: 1.13-3.17); older age (ORa: 1.75, 95% CI: 1.55-2.39); lower education (ORa: 1.44, 95% CI: 1.21-1.72); living close to a busy road (ORa: 1.95, 95% CI: 1.31-2.89) and to a local power plant (ORa: 1.62, 95% CI: 1.07-2.45); and heating home by hot air conditioning (ORa: 1.85, 95% CI: 1.00-3.43) were moderately associated with chronic bronchitis; an inverse association was found with heating home electrically (ORa: 0.58, 95% CI: 0.39-0.85). A positive dose-effect relationship was observed in those living close to a busy road and to a local diesel exhaust source.

CONCLUSION:

Chronic bronchitis is associated with outdoor air pollution.

PMID:
23022867
[Indexed for MEDLINE]
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