Further Information

Passive Smoking Exposure and Female Breast Cancer Mortality | Daniel Wartenberg, Eugenia E. Calle, Michael J. Thun, Clark W. Heath, Jr., Cathy Lally, Tracey Woodruff
Article Published: 2000

Risk: RR = 1.0
Type: Cohort
Funding Source: Supported by U.S. Environmental Protection Agency grant 992097-1 and by Public Health Service grant ES0502209 from the National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services.
Published By: Journal of the National Cancer Institute, Vol. 92, No. 20, 1666-1673, October 18, 2000

Further Information

"Results: After 12 years of follow-up, 669 cases of fatal breast cancer were observed in the cohort. Overall, we saw no association between exposure to ETS and death from breast. We did, however, find a small, not statistically significant increased risk of breast cancer mortality among women who were married before age 20 years to smokers."

"Conclusions: In contrast to the results of previous studies, this study found no association between exposure to ETS and female breast cancer mortality. Overall, the results are null. The results of our study are particularly compelling because of its prospective design as compared with most earlier studies, the relatively large number of exposed women with breast cancer deaths, and the reporting of exposure by the spouse rather than by proxy."

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