Radiographic abnormalities among construction workers exposed to quartz containing dust
| Autor: | Tjoe Nij, E.I.M., Burdorf, A., Parker, J., Attfield, M., van Duivenbooden, C., Heederik, D.J.J., Universiteit Utrecht, Faculteit Diergeneeskunde |
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| Přispěvatelé: | Universiteit Utrecht, Faculteit Diergeneeskunde, Public Health |
| Jazyk: | angličtina |
| Rok vydání: | 2003 |
| Předmět: |
Thorax
Adult Male medicine.medical_specialty Pathology Cross-sectional study Radiography Coronacrisis-Taverne Dentistry Cumulative Exposure complex mixtures Occupational medicine Risk Factors Occupational Exposure Epidemiology medicine Humans Aged business.industry Construction Materials Pneumoconiosis Smoking Public Health Environmental and Occupational Health Dust Quartz respiratory system Middle Aged medicine.disease respiratory tract diseases Cross-Sectional Studies Radiological weapon Regression Analysis Original Article Female business |
| Zdroj: | Occupational and Environmental Medicine, 60, 410-417. BMJ Publishing Group Journal of Occupational and Environmental Medicine, 60(6), 410. Lippincott Williams and Wilkins |
| ISSN: | 1351-0711 1076-2752 |
| Popis: | Background: Construction workers are exposed to quartz containing respirable dust, at levels that may cause fibrosis in the lungs. Studies so far have not established a dose-response relation for radiographic abnormalities for this occupational group. Aims: To measure the extent of radiographic abnormalities among construction workers primarily exposed to quartz containing respirable dust. Methods: A cross sectional study on radiographic abnormalities indicative of pneumoconiosis was conducted among 1339 construction workers mainly involved in grinding, (jack)-hammering, drilling, cutting, sawing, and polishing. Radiological abnormalities were determined by median results of the 1980 International Labour Organisation system of three certified "B" readers. Questionnaires were used for assessment of occupational history, presence of respiratory diseases, and symptoms and smoking habits. Results: An abnormality of ILO profusion category 1/0 and greater was observed on 10.2% of the chest radiographs, and profusion category of 1/1 or greater on 2.9% of the radiographs. The average duration of exposure of this group was 19 years and the average age was 42. The predominant type of small opacities (irregularly shaped) is presumably indicative of mixed dust pneumoconiosis. The prevalence of early signs of nodular silicosis (small rounded opacities of category 1/0 or greater) was low (0.8%). Conclusions: The study suggests an elevated risk of radiographic abnormalities among these workers with expected high exposure. An association between radiographic abnormalities and cumulative exposure to quartz containing dust from construction sites was observed, after correction for potentially confounding variables. |
| Databáze: | OpenAIRE |
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