Environmental Tobacco Smoke and Lung Cancer: A Case-Control Study in Germany
Michaela Kreuzer, Martin Krauss, Lothar Kreienbrock, et al.
Abramson Cancer Center of the University of Pennsylvania
Last Modified: November 1, 2001
Reviewers: Li Liu, MD
Source: American Journal of Epidemiology, Volume 151:241-250, (February) 2000
Précis: Nonsmokers' exposure to tobacco smoke in public places associated with increased lung cancer risk
IntroductionDuring the last 2 decades, epidemiologic studies have been conducted on the association between exposure to environmental tobacco smoke and lung cancer. Several researchers and regulatory agencies have concluded that a causal link has been established (Cancer Causes Control 1997 May;8(3): 333-45). In this study, the researchers assessed the risk of lung cancer among exposed nonsmokers.
MethodA total of 292 lifelong nonsmokers with lung cancer and 1,338 nonsmoking controls were interviewed. The subjects answered questions about the level of exposure to tobacco smoke during childhood, from their spouse, at work, and in transportation and social settings.
- A correlation between lung cancer and exposure to high levels of tobacco smoke at the workplace, in vehicles and from all sources combined was found.
- No correlation was found between lung cancer and tobacco exposure during childhood or from spouses.