Silicosis prevalence and risk factors in semi-precious stone mining in Brazil

American Journal of Industrial Medicine
Tamires P SouzaMarli M Knorst

Abstract

Underground mining generates large amounts of dust and exposes workers to silica. This study aims to determine the prevalence and predictor factors for the development of silicosis among semi-precious-stone mineworkers in southern Brazil working in a self-administered cooperative. In a cross-sectional study of 348 current workers and retirees, demographic data, medical, and occupational history were collected through an interview performed by a nurse and medical record review. Risk factor associations were studied by Poisson multivariate regression. The overall prevalence of silicosis was 37%, while in current miners it was 28%. Several risk factors for silicosis were identified in the univariate analysis. Inadequate ventilation in the underground galleries combined with dry drilling, duration of silica exposure, and (inversely) education remained significant in the multivariate analysis (P < 0.05). This study is unusual in studying semi-precious stone mineworkers in a self-administered worker cooperative with limited resources. The prevalence of silicosis was very high. A number of recommendations are made-including technical support for worker cooperatives, surveillance of silica exposure and silicosis, exposure reduction mea...Continue Reading

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Citations

Nov 15, 2018·Environmental Science and Pollution Research International·Caroline PeruzziSolange Cristina Garcia
May 18, 2020·Work : a Journal of Prevention, Assessment, and Rehabilitation·Tamires Patrícia SouzaMarli Maria Knorst
Jan 5, 2021·International Archives of Occupational and Environmental Health·Tamires Patrícia SouzaMarli Maria Knorst
Mar 29, 2021·American Journal of Industrial Medicine·Tamires P SouzaInês Monteiro

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