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Indian Journal of Cancer
Medknow Publications on behalf of Indian Cancer Society
ISSN: 0019-509X
EISSN: 1998-4774
Vol. 43, No. 4, 2006, pp. 169-173
Bioline Code: cn06027
Full paper language: English
Document type: Research Article
Document available free of charge

Indian Journal of Cancer, Vol. 43, No. 4, 2006, pp. 169-173

 en Meta-analysis of case-referent studies of specific environmental or occupational pollutants on lung cancer
Mahjub H, Sadri GH

Abstract

BACKGROUND: Meta-analysis is a statistical tool for combining and integrating the results of independent studies of a given scientific issue. The present investigation was initiated to investigate case-referent studies of lung cancer risk from specific environmental and occupational pollutants, using detailed individual exposure data.
MATERIALS AND METHODS: To examine the risk of lung cancer associated with environmental and occupational pollutants, a meta-analysis of published case-control studies was undertaken using a random effects model. For this study, the papers were selected for review from electronic search of PubMed, Medline and Google Scholar during 1990-2006. The principal outcome measure was the odds ratio for the risk of lung cancer. Twelve study reports detailing the relationship between the lung cancer and the type of exposure were identified.
RESULTS: The odds ratio of asbestos, cooking fuel, cooking fumes, motor and diesel exhaust related to lung cancer were 1.67, 1.99, 2.52 and 1.42 ( P < 0.001), respectively. The odds ratio of metal fumes related to lung cancer was 1.28 (0.001< P < 0.01). The combined odds ratio for the environmental and occupational exposure related to lung cancer was 1.67 ( P< 0.001).
CONCLUSIONS: The meta-analysis of the present study shows the magnitude association between asbestos, cooking fumes, cooking fuels, motor and diesel exhaust, with lung cancer risk. Lung cancer risk may be reduced by controlling exposure levels.

Keywords
Environmental, lung cancer, meta-analysis, pollution

 
© Copyright 2006 Indian Journal of Cancer.
Alternative site location: http://www.indianjcancer.com/

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