Follow-up was through 1977 with expected deaths adjusted for age and calendar time estimated using death rates for white males in the general population of New Jersey. Among the cohort studied by Seidman et al., 83 lung cancers were observed according to death cer- tificate information whereas 23.1 were expected. Among 61 men employed less than 1 month, three lung cancers were observed versus 1.3 expected. Although based on small numbers, excess mortality from lung cancer showed an increasing trend with employment duration.
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