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Document ID (ISN)101132
CIS number 03-310
ISSN - Serial title 1076-2752 - Journal of Occupational and Environmental Medicine
Year 2000
Convention or series no.
Author(s) Wang X.R., Christiani D.C.
Title Respiratory symptoms and functional status in workers exposed to silica, asbestos and coal mine dusts
Bibliographic information Nov. 2000, Vol.42, No.11, p.1076-1084. Illus. 34 ref.
Abstract Respiratory symptoms and lung function were studied in 220 silica, 227 asbestos and 551 coal mining workers. Data included responses to questionnaires, results of pulmonary function tests and chest radiographs. Significantly poorer pulmonary function and a higher prevalence of dyspnoea and chronic cough were observed in workers with pneumoconiosis, irrespective of dust type. Workers with stages II and III silicosis had worse pulmonary function and more symptoms than workers with equivalent coal workers' pneumoconiosis or asbestosis. Reductions in single-breath diffusing capacity for carbon monoxide (DLCO) and the occurrence of respiratory symptoms were associated with increasing stages of silicosis, asbestosis and coal workers' pneumoconiosis. Despite the difference in degree and pattern of exposure to different fibrogenic dusts, respiratory impairments of all of the workers were associated with the presence and progression of parenchymal fibrosis and smoking.
Descriptors (primary) coal dust; silica; coal mining; respiratory diseases; pulmonary function; asbestos
Descriptors (secondary) China; diffusion capacity; carbon monoxide; smoking; dyspnoea; coalworkers pneumoconiosis; asbestosis; silicosis; fibrosis; questionnaire survey; respiratory function tests; pneumoconiosis
Document type D - Periodical articles
Country / State or ProvinceChina; USA
Subject(s) Mines and quarries
Broad subject area(s) Chemical safety
Browse category(ies) Diseases of the respiratory system (except for pneumoconiosis & similar)
Mining and quarrying