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Hospitalization due to cancer among German seafarers

Marcus Oldenburg¹, Volker Harth, Ulf Manuwald

¹Institute for Occupational and Maritime Medicine, ZfAM, University Medical Center Hamburg-Eppendorf, Germany.

American Journal of Industrial Medicine

|February 26, 2015

Abstract

Objectives:

To evaluate the relative risk of cancer among male German seafarers employed on German vessels in respect of various shipboard ranks and types of vessel.

Methods:

The seafarers' cancer discharge diagnoses from hospital were compared with those discharge diagnoses from the German general population and expressed as a standardized hospitalization ratio (SHR).

Results:

The examined seafarers (on average 23,436 per year) showed a higher SHR for malignant neoplasms at all sites, in decreasing order for leukemia, non-Hodgkin lymphoma (NHL), respiratory cancer, and non-melanoma skin cancer. Seafarers employed on tankers showed a considerably elevated SHR for malignant neoplasms at all sites, which was mainly attributable to their high SHR for leukemia and respiratory cancer.

Conclusions:

Seafaring occupations pose an elevated risk of certain cancers. Further studies are required to evaluate to what extent occupational exposure to carcinogenic substances and lifestyle-related unhealthy behaviours contribute to the increased risk of cancer in seafarers.

Keywords:

cancer chemicals exposure health hazards hospitalization lifestyle seafarers tankers

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