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  • Title: Follow-Up of the Libby, Montana Screening Cohort: A 17-Year Mortality Study.
    Author: Larson TC, Williamson L, Antao VC.
    Journal: J Occup Environ Med; 2020 Jan; 62(1):e1-e6. PubMed ID: 31714372.
    Abstract:
    OBJECTIVE: To evaluate mortality patterns among participants in a community-based screening program for asbestos-related disease. METHODS: We calculated standardized mortality ratios (SMRs) and stratified results by exposure group (three occupational exposure groups, household contacts and residents without occupational asbestos exposure) and by radiographic abnormality presence. RESULTS: All-cause mortality (15.8%; 1,429/8,043) was statistically lower than expected. Asbestosis was statistically elevated in all exposure groups. Lung cancer was moderately associated with vermiculite miner/miller employment. Mesothelioma was elevated in that same exposure group and among residents. Systemic autoimmune disease mortality was also elevated. Radiographic parenchymal abnormalities were associated with lung cancer mortality. CONCLUSION: In addition to asbestos-related mortality in occupational exposure groups, this initial follow-up of this cohort also shows elevated mortality for some asbestos-related causes in non-occupational exposure groups.
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