A Survey Of Pleural Thickening: Its Relation To Asbestos Exposure And Previous Pleural Disease - (1972)

Authors: P.D. Oldham,J.D. Ball,W. Clarke,J.C. Gilson,A. Hanson,E.E. Keal,E.N. Moyes,P. Richardson,A.T.M. Roberts
Published In: Environmental Research

A Comprehensive Overview of the Study on Pleural Thickening and Asbestos Exposure

Abstract The study titled "A Survey of Pleural Thickening: Its Relation to Asbestos Exposure and Previous Pleural Disease" was published in Environmental Research in 1972. Conducted by the British Thoracic and Tuberculosis Association (BTTA) and the Medical Research Council's Pneumoconiosis Unit (MRCPU), the research explored the relationship between pleural thickening, asbestos exposure, and prior pleural diseases. The study analyzed 3868 chest radiographs of individuals over 40 years old attending chest clinics in Birmingham, UK. It found that while asbestos exposure was not conclusively linked to pleural abnormalities, a significant proportion of individuals with pleural thickening had a history of severe pleural diseases, such as empyema or chest wall injuries. The findings emphasized the role of previous pleural inflammations in the development of pleural thickening.


Legal Relevance This study provides critical insights that can support asbestos-related legal claims. Here’s how:

  1. Evidence Pathways: The study highlights the importance of detailed occupational histories and medical records in identifying asbestos exposure. Legal claims can leverage this approach to establish a connection between workplace exposure and pleural abnormalities.

  2. Occupational History Relevance: The research underscores the necessity of investigating past employment in industries known for asbestos use. This is vital for proving exposure in legal cases.

  3. Counterarguments to Defense Claims: Defense teams often argue that pleural thickening is unrelated to asbestos exposure. While this study initially downplays the role of asbestos, current medical advancements (discussed below) provide stronger evidence linking asbestos to pleural abnormalities, countering such claims effectively.

By combining the study’s findings with modern medical knowledge, legal teams can build robust cases for individuals suffering from asbestos-related diseases.


Occupation Groups at Risk The study indirectly identifies several occupational groups at high risk of asbestos exposure. These groups include:

  1. Shipyard Workers: Shipbuilding and repair often involved extensive use of asbestos for insulation, exposing workers to high levels of asbestos dust.
  2. Construction Workers: Asbestos was widely used in building materials such as insulation, roofing, and cement, putting construction workers at significant risk.
  3. Insulation Installers: Handling asbestos-containing insulation materials directly exposed these workers to hazardous fibers.
  4. Dockyard Workers: Similar to shipyard workers, dockyard employees were frequently exposed to asbestos in ship maintenance and repair.
  5. Factory Workers: Factories producing asbestos-containing products, such as textiles or brake linings, posed a high risk to employees.
  6. Miners: Asbestos mining and processing exposed workers to raw asbestos fibers, leading to significant health risks.

These occupations are particularly relevant in legal claims, as they provide clear scenarios of asbestos exposure. Individuals in these fields should be aware of their rights to seek compensation for asbestos-related illnesses.


Current Medical Understanding While the study concluded that asbestos exposure was not a significant cause of pleural thickening, modern medical research has since established a stronger link. Advances in diagnostic imaging and epidemiological studies have shown that asbestos exposure is a major risk factor for pleural abnormalities, including pleural plaques and diffuse pleural thickening. These conditions are now widely recognized as markers of asbestos exposure, even in the absence of asbestosis or other lung diseases.

The study’s findings on the role of previous pleural diseases remain valid, but they must be considered alongside the overwhelming evidence of asbestos’s impact on pleural health. This updated understanding strengthens the case for individuals seeking legal recourse for asbestos-related conditions.


Citation British Thoracic and Tuberculosis Association (BTTA) & Medical Research Council's Pneumoconiosis Unit (MRCPU). (1972). A Survey of Pleural Thickening: Its Relation to Asbestos Exposure and Previous Pleural Disease. Environmental Research, 5(2), 142-151. https://doi.org/10.1016/0013-9351(72)90029-1


National Library of Medicine Link For additional context and credibility, you can access the study on the National Library of Medicine’s website: PubMed Link.


Contact Us Today If you or a loved one has been diagnosed with an asbestos-related disease such as mesothelioma, lung cancer, stomach cancer, throat cancer, colon cancer, asbestosis, or pleural plaques, you may be entitled to compensation. Our experienced legal team specializes in asbestos-related claims and is here to help you navigate the legal process.

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