Occupation and larynx and hypopharynx cancer: A job-exposure matrix approach in an international case-control study in France, Italy, Spain and Switzerland

Franco Berrino, Lorenzo Richiardi, Paolo Boffetta, Jacques Estève, Isabella Belletti, Luc Raymond, Loredana Troschel, Paola Pisani, Lourdes Zubiri, Nieves Ascunce, Etienne Gubéran, Albert Tuyns, Benedetto Terracini, Franco Merletti, Lorenzo Arduini, Alberto Baldasseroni, Dario Continenza, Paolo Crosignani, Filippo Ferrario, Maurizio MacalusoCorrado Magnani, Enzo Merler

Research output: Contribution to journalArticlepeer-review


Objective: To investigate the effect of exposure to occupational agents on the risk of hypopharyngeal/laryngeal cancer. Methods: Case-control study conducted during 1979-1982 in six centres in South Europe. An occupational history and information on exposure to non-occupational factors were collected for 1010 male cases of hypopharyngeal/laryngeal cancer as well as for 2176 population controls. The exposure to 10 occupational agents was assessed through a job-exposure matrix. As occupational histories had been collected since 1945 major analyses were restricted to subjects aged less than 55 years (315 cases and 819 controls). Results: Significant elevated risks adjusted for non-occupational variables (smoking, alcohol consumption and diet) and other occupational exposures were consistently found for organic solvents (odds ratio (OR) for ever-exposure: 1.7, 95% confidence interval: 1.1-2.5) and asbestos (OR: 1.6, 1.0-2.5). A significant positive trend for both probability of exposure and duration was found for exposure to solvents. A positive association between exposure to formaldehyde and laryngeal cancer was also suggested. No association was found for exposure to arsenic and compounds, chromium and compounds, and polycyclic aromatic hydrocarbons. Analyses restricted to subjects aged 55 or more did not show elevated risks, with the exception of wood dust (OR: 1.8, 1.3-2.7). Conclusions: In our study occupational exposure to solvents was associated with an increased risk of hypopharyngeal/laryngeal cancer. Results also provide additional evidence of an excess of risk for exposure to asbestos.

Original languageEnglish
Pages (from-to)213-223
Number of pages11
JournalCancer Causes and Control
Issue number3
Publication statusPublished - Apr 2003


  • Asbestos
  • Hypopharynx cancer
  • Job exposure matrix
  • Larynx cancer
  • Occupation
  • Solvents

ASJC Scopus subject areas

  • Oncology
  • Epidemiology
  • Cancer Research


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