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Lung cancer
Lung cancer and exposure to mineral wools: the ICARE study
  1. Florence Guida1,
  2. Farida Lamkarkach1,
  3. Sylvie Cenée1,
  4. Diane Cyr1,
  5. Oumar Gaye1,
  6. Aude Lacourt2,
  7. Patrick Brochard2,
  8. Stéphane Ducamp3,
  9. Christophe Paris4,
  10. Joelle Fevotte5,
  11. Danièle Luce1,
  12. Isabelle Stücker1
  1. 1Inserm U1018, Villejuif, France
  2. 2ISPED EA 3672, Bordeaux, France
  3. 3InVS, Bordeaux, France
  4. 4Inserm U420, Vandoeuvre les Nancy, France
  5. 5InVS, Saint-Maurice, France

Abstract

Objectives This work aims at assessing the risk of lung cancer associated with mineral wools (MW) currently used as a substitute for asbestos. They are suspected of increasing the risk of lung cancer because of their structure close to asbestos.

Methods ICARE is a large multicentre population-based case-control study conducted between 2001 and 2006 in 10 French departments with a general cancer registry. ICARE includes 2926 incident lung cancer cases and 3555 controls with 78% of men. The subjects' exposure to MW was first determined using a Job-Exposure Matrix (JEM) specific for MW. Then, individual exposure was assessed with an algorithm using specific questions on exposing tasks. We used unconditional logistic regression adjusted for age, department, number of job periods, lifelong cigarette smoking and exposure to asbestos (also assessed by a JEM and an algorithm).

Results Analyses were conducted among men (2301 cases, 2780 controls) and concerned 27191 jobs. In the first analyses, we find significant associations between the risk of lung cancer and exposure to MW assessed with the JEM. They became non non-significant and close to 1 when adjusting for exposure to asbestos. In contrast, a significant dose-response relation was found between exposure to asbestos and the risk of lung cancer, even when adjusted for exposure to MW.

Conclusions These results need to be completed with the exposure assessment from the algorithm. This algorithm would help us disentangle MW and asbestos exposure, which are closely related because of similar exposing jobs. Both results will be presented.

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