title: Declining relative risks for lung cancer after cessation of asbestos exposure.
abstract: All studies that provide follow-up information for workers more than 35 years after initial exposure to asbestos show a declining ratio of observed to expected lung cancer deaths at the end of follow-up. The most parsimonious explanation of this finding is that relative risk for lung cancer begins to decline sometime after cessation of asbestos exposure.
mesh_terms: D000293:Adolescent; D000328:Adult; D001194:Asbestos / Q000009:adverse effects*; D002170:Canada; D005500:Follow-Up Studies; D006801:Humans; D008175:Lung Neoplasms / Q000209:etiology* / Q000401:mortality; D008297:Male; D008875:Middle Aged; D009515:New Jersey; D009518:New York; D009784:Occupational Diseases / Q000209:etiology* / Q000401:mortality; D012306:Risk; D013997:Time Factors
chemical_list: D001194:Asbestos