Pleural mesothelioma and lung cancer risks in relation to occupational history and asbestos lung burden.
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
BACKGROUND: We have conducted a population-based study of pleural mesothelioma patients with occupational histories and measured asbestos lung burdens in occupationally exposed workers and in the general population. The relationship between lung burden and risk, particularly at environmental exposure levels, will enable future mesothelioma rates in people born after 1965 who never installed asbestos to be predicted from their asbestos lung burdens. METHODS: Following personal interview asbestos fibres longer than 5 µm were counted by transmission electron microscopy in lung samples obtained from 133 patients with mesothelioma and 262 patients with lung cancer. ORs for mesothelioma were converted to lifetime risks. RESULTS: Lifetime mesothelioma risk is approximately 0.02% per 1000 amphibole fibres per gram of dry lung tissue over a more than 100-fold range, from 1 to 4 in the most heavily exposed building workers to less than 1 in 500 in most of the population. The asbestos fibres counted were amosite (75%), crocidolite (18%), other amphiboles (5%) and chrysotile (2%). CONCLUSIONS: The approximate linearity of the dose-response together with lung burden measurements in younger people will provide reasonably reliable predictions of future mesothelioma rates in those born since 1965 whose risks cannot yet be seen in national rates. Burdens in those born more recently will indicate the continuing occupational and environmental hazards under current asbestos control regulations. Our results confirm the major contribution of amosite to UK mesothelioma incidence and the substantial contribution of non-occupational exposure, particularly in women.
Date Issued
2015-12-29
Date Acceptance
2015-11-11
Citation
Occupational and Environmental Medicine, 2015, 73 (5), pp.290-299
ISSN
1470-7926
Publisher
BMJ Publishing Group
Start Page
290
End Page
299
Journal / Book Title
Occupational and Environmental Medicine
Volume
73
Issue
5
Copyright Statement
This is an Open Access article distributed in accordance with the
terms of the Creative Commons Attribution (CC BY 4.0) license, which permits
others to distribute, remix, adapt and build upon this work, for commercial use,
provided the original work is properly cited. See: http://creativecommons.org/
licenses/by/4.0/
terms of the Creative Commons Attribution (CC BY 4.0) license, which permits
others to distribute, remix, adapt and build upon this work, for commercial use,
provided the original work is properly cited. See: http://creativecommons.org/
licenses/by/4.0/
License URL
Identifier
PII: oemed-2015-103074
Subjects
Environmental & Occupational Health
1103 Clinical Sciences
1117 Public Health And Health Services
1599 Other Commerce, Management, Tourism And Services
Publication Status
Published