Selikoff et al RMA ID: Asbestotic 3324 seamen (100% Merchant Not reported Duration of Morbidity study reporting (1990) 035792 Radiological men) marine seamen exposure: M=>20 asbestos exposure Abnormalities 1157 (34.8%)= years producing Among United pneumoconiosis 329 pneumoconiosis and States Merchant (9.9%) (profusion pleural plaques. ≥1/0) Marine Seamen 227 (6.8%) (pleural Prevalence rate for all thickening, pleural radiological asbestos plaques, with or without related abnormalities calcification) 601 (pleural or parenchymal (18.1%) (only or both) highest level radiological change) (38.5%) >40 years from onset of exposure. Authors conclusion: prevalence of asbestotic changes was greater among seamen who had served in the engine department (391/420; 425%) compared with seamen in other departments, including deck (301/820; 36.6%), steward (278/ 981; 28.4%), or with service in multiple departments (167/541; 30.9%) Sluis-Cremer RMA ID: Progression of 1454 African Amphibole Mining exposure Mining exposure up Morbidity study reporting (1989) 035796 Irregular asbestos mine and mill mine/mill up to 1st X-ray: to 1st X-ray: asbestos exposure Opacities in workers (100% men) exposure after 1st exposure after 1st producing asbestosis and Asbestos X-Ray: Yes=793; X-Ray pleural plaques. No Miners M=38.4 Yes=793; M=6.7 difference in the (661 discontinued work; years frequency of disease 793 continued work) incidence or rate of progression between
Selikoff et al (1990) RMA ID: 035792 Asbestotic Radiological Abnormalities Among United States Merchant Marine Seamen 3324 seamen (100% men) 1157 (34.8%)= pneumoconiosis 329 (9.9%) (profusion ≥1/0) 227 (6.8%) (pleural thickening, pleural plaques, with or without calcification) 601 (18.1%) (only radiological change) Merchant marine seamen Not reported Duration of exposure: M=>20 years Morbidity study reporting asbestos exposure producing pneumoconiosis and pleural plaques. Prevalence rate for all radiological asbestos related abnormalities (pleural or parenchymal or both) highest level (38.5%) >40 years from onset of exposure. Authors conclusion: prevalence of asbestotic changes was greater among seamen who had served in the engine department (391/420; 425%) compared with seamen in other departments, including deck (301/820; 36.6%), steward (278/ 981; 28.4%), or with service in multiple departments (167/541; 30.9%) Sluis-Cremer (1989) RMA ID: 035796 Progression of Irregular Opacities in Asbestos Miners 1454 African asbestos mine and mill workers (100% men) (661 discontinued work; 793 continued work) Amphibole mine/mill Mining exposure up to 1st X-ray: exposure after 1st X-Ray: Yes=793; M=38.4 Mining exposure up to 1st X-ray: exposure after 1st X-Ray Yes=793; M=6.7 years Morbidity study reporting asbestos exposure producing asbestosis and pleural plaques. No difference in the frequency of disease incidence or rate of progression between
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