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Epidemiology. 2013 Jan;24(1):100-3. doi: 10.1097/EDE.0b013e318276cc95.

Carcinoma of the pharynx and tonsils in an occupational cohort of asphalt workers.

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1
Section of Occupational Medicine, Department of Internal Medicine, Geriatrics and Nephrology, Alma Mater Studiorum-University of Bologna, Bologna, Italy.

Abstract

BACKGROUND:

We investigated a possible association between pharyngeal/tonsillar carcinoma and mixed carcinogen exposures in an asphalt roll company in Italy that used asbestos until 1979, when a new factory was built using a different production process.

METHODS:

We evaluated all workers involved in the entire production history of the company, divided into two subcohorts based on exposure status (workers in the original factory, 1964-1979, and those who worked only in the new factory, 1980-1997). We ascertained the vital status of the study population in February 2001.

RESULTS:

Among the subset of workers in the earlier subcohort, there were five deaths from pharyngeal/tonsillar carcinoma for a standardized mortality ratio of 21 (95% confidence interval = 8.8-51). No cases were recorded among workers hired after 1979.

CONCLUSION:

The increased standardized mortality ratio for this relatively rare cancer among workers exposed before 1979 may have been due to carcinogenic exposures at the plant.

PMID:
23232615
DOI:
10.1097/EDE.0b013e318276cc95
[Indexed for MEDLINE]
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