ets exposure, lung cancer - Legacy Tobacco Documents Library

0
i
GENERAL COMMENTS
The same criticisms that apply_to the spousal smoking risk
estimates apply to the workplace risk estimates (no actual
measurements of exposure, failure to account for sources of
bias and for potential confounding factors, poor study design,
weak reported associations) .
As illustrated in Table 1, only two of the reported risk
estimates
majority,
significant .
are statistically significant . The overwhelming
16 of 18 risk estimates, are not statistically
Taken as a whole, these data do not support the
existence of an association between workplace exposure to ETS
and lung cancer risk in nonsmokers .
As recently noted by LeVois and Layardl :
The EPA' s
workplaces
therefore
cancer, so
fourth point, that ETS exposure in
is comparable to home exposure, and
if home exposure can cause lung
can workplace exposure, is not an
argument for dismissing the workplace
epidemiology at all . Rather, it simply avoids
the question of why, if domestic and workplace
exposures are comparable, the combined
workplace data do not indicate any ETS-lung
cancer association .
1 . LeVois, M .E ., and Layard, M .W ., "Inconsistency Between
Workplace and Spousal Studies of Environmental Tobacco Smoke
and Lung Cancer," Regulatory Toxicoloay and Pharmacoloay 19 :
309-316, 1994 .
http://legacy.library.ucsf.edu/tid/wyk81f00/pdf