Sensitivity of the association between increased lung cancer risk and bitumen fume exposure to the assumptions in the assessment of exposure.
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Authors
de Vocht, FrankBurstyn, Igor
Ferro, Gilles
Olsson, Ann
Hashibe, Mia
Kromhout, Hans
Boffetta, Paolo
Issue Date
2009-05
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Show full item recordAbstract
PURPOSE: A multi-centre IARC-coordinated European cohort study provided evidence of an association between lung cancer risk and bitumen fume exposure. Sensitivity analyses were conducted to assess whether these associations were robust to assumptions in the exposure assessment for which support could not be obtained due to lack of either measurements or direct observations. METHODS: New exposure estimates were generated by changing assumptions on exposure levels, specific tasks, lags, and coal tar use. Subsequently, Poisson regression models estimated relative risks (RRs); change in fit of models was evaluated. RESULTS: The influence of these assumptions was minimal, with log-likelihood deviations between -5.0 and 4.7% and similar patterns in dose-dependent increases of lung cancer risk. In the highest exposure categories, point estimates of RRs ranged 2.07-2.83 for average, and 1.22-2.23 for cumulative exposure. CONCLUSIONS: The small increase in lung cancer risk associated with bitumen fume exposure depends only to a limited extent on the subjective judgments made in the exposure assessment for this cohort.Citation
Int. Arch. Occup. Environ. Health 2009, 82 (6):723-733PubMed ID
18956211Additional Links
http://www.springerlink.com/content/e0728722ht844630/Type
ArticleLanguage
enISSN
1432-1246Sponsors
This study was sponsored by a training fellowship grant from the European Union Sixth Framework Programme Network of Excellence on Environmental Cancer risk, Nutrition and Individual Susceptibility (ECNIS) (FOOD-CT-2005-513 943). The international component of the study was supported by share cost contracts from the European Commission (grant No. BMH4-CT95-1100) and EAPA, Eurobitume, and CONCAWE.ae974a485f413a2113503eed53cd6c53
10.1007/s00420-008-0373-6
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