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Standardised mortality ratios (SMRs) and 95% CIs were computed by applying Italian and regional male death rates to person-years of observation for the entire cohort and following stratification by longest held job title and length of and time since first employment using the Poisson regression model.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>There were 2916 deaths and 230 009 person-years of observation; 17 subjects were lost to follow-up. SMRs for all causes, diseases of the circulatory, respiratory, digestive and genitourinary systems, and for accidents were lower than expected. SMRs (95% CI) were increased for lung cancer (1.16, 1.05 to 1.28), non-Hodgkin's lymphoma (1.23, 0.85 to 1.78), Hodgkin's lymphoma (2.14, 1.19 to 3.87) and diabetes mellitus (1.16, 1.05 to 1.28). The SMR for leukaemia was 0.77 (0.51 to 1.16). Hodgkin's lymphoma mortality was significantly increased among bus drivers (1.62, 1.37 to 5.04). Lung cancer risk was significantly increased among all workers after 30\u2005years' employment and among maintenance workers.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The study failed to show any increased risk for leukaemias. 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