Table 3

 Lung cancer mortality in a cohort of chemical workers exposed to TCDD

Study groupObserved casesNot adjusted for smokingAdjusted for smoking*
Exp†SMR95% CIExpSMR95% CI
Source: Fingerhut et al.47
*Adjusted using smoking data for a subset of the study population (see text).
†Expected number of lung cancer deaths.
‡Subcohort with >20 years since first employment and >1 year of exposure.
Full cohort8980.11.110.89 to 1.3784.81.050.85 to 1.30
High exposure cohort‡4028.81.390.99 to 1.8929.21.370.98 to 1.87