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Mining tenure and job duties differ among contemporary and historic underground coal miners with progressive massive fibrosis
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4 2023
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Source: J Occup Environ Med. 65(4):315-320
[PDF-300.78 KB]
Details:
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Alternative Title:J Occup Environ Med
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Personal Author:
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Description:Objective:
To characterize differences in mining jobs and tenure between contemporary (born 1930+, working primarily with modern mining technologies) and historic coal miners with progressive massive fibrosis (PMF).
Methods:
We classified jobs as designated occupations (DOs) and non-DOs based on regulatory sampling requirements. Demographic, occupational characteristics, and histopathological PMF type were compared between groups.
Results:
Contemporary miners (n=33) had significantly shorter mean total (30.4 years vs. 37.1 years, p=0.0006) and underground (28.8 years vs. 35.8 years, p=0.001) mining tenure compared to historic miners (n=289). Silica-type PMF was significantly more common among miners in non-DOs (30.1% vs. 15.8%, p=0.03) and contemporary miners (58.1% vs. 15.2%, p<0.0001).
Conclusions:
Primary jobs changed over time with the introduction of modern mining technologies and likely changed exposures for workers. Elevated crystalline silica exposures are likely in non-DOs and require attention.
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Source:
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Pubmed ID:36730599
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Pubmed Central ID:PMC10081940
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Funding:
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Volume:65
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Issue:4
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