Neuropsychological deficit among elderly workers in aluminum production
Article first published online: 19 JAN 2007
Copyright © 1994 Wiley Periodicals, Inc., A Wiley Company
American Journal of Industrial Medicine
Volume 25, Issue 5, pages 649–662, May 1994
How to Cite
Bast-Pettersen, R., Drabløs, P. A., Goffeng, L. O., Thomassen, Y. and Torres, C. G. (1994), Neuropsychological deficit among elderly workers in aluminum production. Am. J. Ind. Med., 25: 649–662. doi: 10.1002/ajim.4700250505
- Issue published online: 19 JAN 2007
- Article first published online: 19 JAN 2007
- Manuscript Accepted: 12 JUN 1993
- neuropsychological tests;
- CNS deterioration;
A cross-sectional study was conducted at a Norwegian primary aluminum plant. All workers aged 61-66 years were offered early retirement benefits. Among the workers, 47 met the study criteria and 38 (81%), comprising 14 potroom workers, 8 foundry workers, and 16 controls, volunteered to participate. They were tested with a neuropsychological test battery.
Workers in potrooms with Søderberg electrolytic cells were found to show signs of impairment of the nervous system. A test for tremor discriminated significantly between the potroom group and the controls. There was a suggestion of increased risk of impaired visuospatial organization and a tendency to a decline in psychomotor tempo in the potroom workers. We suggest that the above findings may be related to long-term occupational exposure in the potroom, and further to chronic low-dose exposure to aluminum. © 1994 Wiley-Liss, Inc.