Passive smoking and lung cancer.

Abstract

The findings of a multicenter national study of lung cancer in lifetime-never smokers are reported. An increased lung cancer risk of approximately 30% was found among women whose husbands smoked. Elevated risks of 40% to 60% were also found associated with workplace exposures and other exposures outside the home. The findings of this study have been included in the recent Environmental Protection Agency assessment of the health effects of passive smoking, and have implications for regulation of environmental tobacco smoke exposure in Louisiana.