Occupation and larynx and hypopharynx cancer: an international case-control study in France, Italy, Spain, and Switzerland.

Objective: To estimate risks for laryngeal/hypopharyngeal cancer associated with occupational titles and industrial activities.

Methods: A multicentre population-based case-control study was conducted in the early 1980s in six southern European areas. Analyses included 1010 male cases and 2176 controls.