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Silicosis and end-stage renal disease.

Authors
Steenland-K; Rosenman-K; Socie-E; Valiante-D
Source
Scand J Work, Environ & Health 2002 Dec; 28(6):439-442
NIOSHTIC No.
20024018
Abstract
The objective of this study was to determine the incidence of renal disease among workers with silicosis. A population of 1,328 workers with definite silicosis and adequate work history information, drawn from three states with silicosis surveillance systems, was followed. Renal disease was ascertained via linkage of the cohort with a United States register (which has existed since 1977) of end-stage renal disease. In the first analysis, it was assumed that the risk of end-stage renal disease began upon exposure to silica. In this analysis 12 cases of end-stage renal disease were found versus 15.6 expected, for a rate ratio of 0.77. Four cases of glomerular end-stage renal disease were found (standardized incidence ratio 2.65, 95% confidence interval 0.56-5.25). It is possible that some persons with end-stage renal disease died before being entered into the silicosis registers. In a second analysis, person-time at risk was assumed to begin at the date of entry into the silicosis register. A rate ratio of 1.67 (95% confidence interval 0.76-3.17) was found for end-stage renal disease on the basis of nine observed cases. The results do not clearly show that patients with silicosis have an excess of end-state renal disease, although they do suggest an excess of glomerular end-stage renal disease. Analyses were limited by small numbers and possible selection biases.
Keywords
Silicosis; Workers; Silica-dusts; Silicates; Occupational-exposure; Exposure-levels; Risk-analysis; Risk-factors; Kidney-disorders; Kidneys; Nephrological-disorders; Nephrotoxicity; Nephrotoxins
Contact
Dr. Kyle Steenland, School of Public Health, Emory University, 1518 Clifton Road, Atlanta, GA 30322
CODEN
SWEHDO
Publication Date
20021201
Document Type
Journal Article
Email Address
nsteenl@sph.emory.edu
Fiscal Year
2003
NTIS Accession No.
NTIS Price
Issue of Publication
6
ISSN
0355-3140
NIOSH Division
DSHEFS
Source Name
Scandinavian Journal of Work, Environment and Health
State
OH; GA; MI; NJ
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