Objectives The purpose of this study was to determine the mortality and cancer incidence of long-term lead smelter workers at a primary smelter.
Methods A cohort of 3979 workers employed for at least I year during 1928-1979 and a subcohort of 1992 workers employed in lead-exposed departments (lead only workers) was formed.
The expected mortality in 1955-1987 and cancer incidence in 1958-1987 were calculated relative to the county rates, specified for cause, gender, 5-year age groups, and calendar year.
A cumulative blood-lead index was used for the dose-response analyses.
Results The lung cancer incidence of the total cohort [standardized incidence ratio (SIR) 2.8,95% confidence interval (95% Cl) 2.1-3.8] and the group with the highest exposure (SIR 3.1,95% Cl 2.0-4.6) was high.
Similar risk estimates were observed with a latency of 15 years.
The workers hired before 1950 had higher lung cancer risk estimates (SIR 3.6,95% Cl 2.6-5.0) than the workers hired later (SIR 1.3,95% Cl 0.6-2.6, no latency period).
The risk estimates for lung cancer were further elevated in the subcohort of lead-only workers (SIR 5.1,95% Cl 2.0-10.5 in the highest exposed subgroup ; latency period of 15 years).
No excesses of other malignancies were noted.
Conclusions The increased relative risks were probably mainly due to interactions between lead and other carcinogenic exposures, including arsenic. (...)
Mots-clés Pascal : Plomb, Suède, Europe, Métal lourd, Industrie métallurgique, Toxicité, Homme, Exposition professionnelle, Médecine travail, Epidémiologie, Etude cohorte, Mortalité, Morbidité, Tumeur maligne, Bronchopulmonaire, Carcinogène, Appareil respiratoire pathologie, Poumon pathologie, Association toxique, Arsenic
Mots-clés Pascal anglais : Lead, Sweden, Europe, Heavy metal, Metallurgical industry, Toxicity, Human, Occupational exposure, Occupational medicine, Epidemiology, Cohort study, Mortality, Morbidity, Malignant tumor, Bronchopulmonary, Carcinogen, Respiratory disease, Lung disease, Toxic association, Arsenic
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 97-0228233
Code Inist : 002B03L05. Création : 11/06/1997.