Mortality and cancer morbidity in a group of swedish VCM and PCV production workers

Abstract

The cohort of workers employed in a Swedish vinyl chloride/poly(vinyl chloride) plant since its start in the early 1940's has been followed for mortality and cancer morbidity patterns. Only 21 of the 771 persons could not be traced. Difficulties in establishing exposure levels at different work areas in the past makes an evaluation of dose-effect relations impossible. A four- to fivefold excess of pancreas/liver tumors was found, including two cases later classified as hemangiosarcomas of the liver. The number of brain tumors and suicides do not deviate significantly from expected. Cardiovascular and cerebrovascular diseases, on the other hand, differ significantly from the expected. The discrepancies between previous reports on VCM/PVC workers and this report are discussed, as is the possible etiology of the cardiovascular deaths.