High prevalence of silicosis among stone carvers in Brazil
Version of Record online: 15 JAN 2004
Copyright © 2004 Wiley-Liss, Inc.
American Journal of Industrial Medicine
Volume 45, Issue 2, pages 194–201, February 2004
How to Cite
Antão, V. C. d. S., Pinheiro, G. A., Kavakama, J. and Terra-Filho, M. (2004), High prevalence of silicosis among stone carvers in Brazil. Am. J. Ind. Med., 45: 194–201. doi: 10.1002/ajim.10331
- Issue online: 15 JAN 2004
- Version of Record online: 15 JAN 2004
- Manuscript Accepted: 20 OCT 2003
- Brazilian National Council for Scientific and Technological Development [CNPq]
- Division of Respiratory Diseases, Heart Institute (InCor), University of São Paulo Medical School
- UC Davis Fogarty International Center. Grant Number: D43 TW05718
- stone carving;
- ILO reading;
- lung function;
- air sampling
In the city of Petrópolis, Brazil, artisans carve souvenirs from a variety of silica-containing minerals. The finding of pulmonary massive fibrosis in one of the workers motivated an investigation of the prevalence of silicosis in this group.
Between January 2000 and June 2002, a cross-sectional study was performed. We obtained clinical and occupational histories, spirometry, lung volumes, and carbon monoxide diffusion capacity measurements. Chest radiographs and high-resolution computed tomographies (HRCT) were evaluated. Personal air samples were analyzed.
Forty-two stone carvers were examined. The prevalence of silicosis was 53.7%. HRCT better characterized silicotic lesions compared to chest radiographs. Early coalescence of small opacities was associated with lung function impairment. The concentration of dust exceeded permissible limits in 91% of the workplaces.
Exposure to high levels of silica dust was associated with an increased prevalence of silicosis among stone carvers. Am. J. Ind. Med. 45:194–201, 2004. © 2004 Wiley-Liss, Inc.