ets exposure, lung cancer - Legacy Tobacco Documents Library

http://legacy.library.ucsf.edu/tid/wyk81f00/pdf
LeVois and Layard conclude :
The fact that workplace studies produce a risk
estimate that disagrees with the estimate
derived from aggregated spousal smoking
studies cannot be dismissed by making
speculative assumptions about study design
validity . . . . The workplace ETS study design
avoids problems of spousal concordance with
respect to lung cancer risk factors and
introduces fewer potential biases and
confounders than are present in the spousal
study design . Thus, workplace ETS-lung cancer
data are probably less flawed than are the
spousal smoking data . [authors' emphasis]