Occupational exposures as risk factors for oral cancer evaluated in a Swedish case-control study.

In a case-control study with 410 cases and 410 matched controls from the period 1980-1989 we investigated the role of occupations and occupational exposures as risk factors for squamous cell oral cancer. All subjects received a questionnaire. The response rates were 96% and 91% for cases and controls, respectively. A significantly increased risk was found for pulp industry workers, odds ratio (OR) 4.0 and wood or product workers, OR 5.5....