ILO Home
Go to the home page
Site map | Contact us Franšais | Espa˝ol

CISDOC database

Document ID (ISN)105356
CIS number 06-834
ISSN - Serial title 0962-7480 - Occupational Medicine
Year 2005
Convention or series no.
Author(s) Campbell M., Thomas H., Hodges N., Paul A., Williams J.
Title A 24 year cohort study of mortality in slate workers in North Wales
Bibliographic information Sep. 2005, Vol.55, No.6, p.448-453. 10 ref.
Abstract The mortality of a cohort of slate mining and quarrying workers in North Wales was studied, together with that of a contemporaneous control group, with follow-up from 1975 to 1998. The survey involved 726 slate workers and 529 age matched controls. A clear excess of death rate was found among slate workers compared with controls, after adjusting for age and smoking habits. Hazard ratio for all deaths was 1.24. The excess was mainly due to respiratory disease and pneumoconiosis. The hazard ratio for respiratory deaths was 1.85. It is likely that the excess of deaths in the exposed group was due to exposure to slate dust. The accuracy of pneumoconiosis as a cause of death is questionable due to the lack of confirmation from radiographic data.
Descriptors (primary) slate; Wales; slate quarrying; respiratory diseases; mortality
Descriptors (secondary) airborne dust; male workers; long-term study; pneumoconiosis; United Kingdom
Document type D - Periodical articles
Country / State or ProvinceUnited Kingdom
Subject(s) Mines and quarries
Broad subject area(s) Industries and occupations
Occupational medicine, epidemiology
Chemical safety
Browse category(ies) Mining and quarrying
Diseases of the respiratory system (except for pneumoconiosis & similar)