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Performance of different exposure assessment approaches in a study of bitumen fume exposure and lung cancer mortality.

AbstractBACKGROUND:
We compared performance of different exposure assessment approaches in a cohort study of cancer risk among European asphalt workers.
METHODS:
Three bitumen fume exposure indices (duration of exposure (years), average exposure (mg/m3) and cumulative exposure (mg/m3*years)) and two latency models (with and without a 15 year lag) were considered for an association between lung cancer mortality and bitumen fume.
RESULTS:
There was no association between lung cancer risk and either duration or cumulative exposure. However, there was the suggestion of an increase in lung cancer risk accompanying rise in average exposure. Only models with average bitumen fume exposure (with or without lag) improved model fit, albeit to the same extent.
CONCLUSIONS:
Constructing quantitative indices of exposure intensity was justified because they produced the greatest improvement in fit of models that explored possible relationship between bitumen fume exposure and lung cancer risk. The identified associations require further investigation.
AuthorsIgor Burstyn, Paolo Boffetta, Timo Kauppinen, Pirjo Heikkilä, Ole Svane, Timo Partanen, Isabelle Stücker, Rainer Frentzel-Beyme, Wolfgang Ahrens, Hiltrud Merzenich, Dick Heederik, Mariette Hooiveld, Bert Brunekreef, Sverre Langård, Britt G Randem, Bengt Järvholm, Ingvar A Bergdahl, Judith Shaham, Gilles Ferro, Hans Kromhout
JournalAmerican journal of industrial medicine (Am J Ind Med) Vol. 43 Issue 1 Pg. 40-8 (Jan 2003) ISSN: 0271-3586 [Print] United States
PMID12494420 (Publication Type: Evaluation Study, Journal Article, Multicenter Study, Research Support, Non-U.S. Gov't)
CopyrightCopyright 2003 Wiley-Liss, Inc.
Topics
  • Cohort Studies
  • Humans
  • Inhalation Exposure (statistics & numerical data)
  • Lung Neoplasms (epidemiology)
  • Models, Statistical
  • Occupational Diseases (epidemiology)
  • Occupational Exposure (statistics & numerical data)
  • Risk Assessment
  • Time Factors

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