Mortality and cancer incidence among PVC‐processing workers in Sweden

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Abstract
The mortality pattern and the cancer incidence were investigated among 717 men who had been employed for at least 3 months during 1964–1974 in three Swedish PVC-processing plants. The mortality was followed 1964–1986 and the cancer incidence 1964–1984. Expected figures were calculated from Swedish national rates. Among Swedish citizens, the observed mortality and cancer incidence was close to the expected in most diagnoses. Among immigrants, mostly from Finland, there was a marked excess of circulatory deaths. This finding was probably due to the higher incidence of coronary mortality in Finland compared to Sweden. In the whole cohort, five cases of malignant melanoma had occurred as compared to 1.5 expected (SMR = 3.4, 95% confidence limit 1.1–7.9). This may be due to chance but merits further investigation since an increased incidence of malignant melanoma has previously been found among Norwegian PVC-manufacturing workers.