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The prevalence of asbestosis among asbestos textile workers

, : The prevalence of asbestosis among asbestos textile workers. Arhiv za Higijenu Rada i Toksikologiju 38(4): 331-338

In an epidemiological study 204 workers (90.5%) out of the 225 employed in an asbetos textile plant, using chrysotile, were examined. The study included a physical examination, a questionnaire on respiratory diseases, chest radiography, lung function test (VC, FEV1 expiratory flow curve), laboratory tests and microscope sputum citology. The production workers (group A) were 33.0 .+-. 5.0 years old with an exposure of 9.3 .+-. 5.0 years and the assistant, technical and supervisory personnel (group B) was aged 36.5 .+-. 6.3 years with duration of exposure 9.2 .+-. 6.0 years. In 12 workers (8.0%) from group A, average age 37.0 .+-. 7.5 years and average duration of exposure 13.4 .+-. 6.3 years, and in five persons (9.2%) from group B, average age 43.8 .+-. 7.1 years and duration of exposure 19.6 .+-. 5.3 years, small irregular opacities were found. Among these 17 persons with a radiographic diagnosis of asbestosis 15 (88.2%) had pleural thickenings,. 12 (70.6%) had chronic affection of the upper airways. 9 (52.9%) had chronic bronchitis and 7 (41.2%) had disorders of ventilatory lung function. The established prevalence of small irregular opacities in the examined population of worker represents a two-year incidence.

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