Cigarette Smoking and Risk of Benign Proliferative Epithelial Disorders of the Breast in the Women's Health Initiative

Objective To investigate the association between cigarette smoking and risk of benign proliferative epithelial disorders (BPED) of the breast. Methods We used data from an ancillary study of benign breast disease that is being conducted in the Women's Health Initiative randomized clinical trial...

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Bibliographic Details
Published in:Cancer causes & control 2007-05, Vol.18 (4), p.431-438
Main Authors: Cui, Yan, Page, David L., Chlebowski, Rowan T., Hsia, Judith, Hubbell, F. Allan, Johnson, Karen C., Rohan, Thomas E.
Format: Article
Language:English
Subjects:
Aged
Biopsies
Biopsy
Breast cancer
Breast diseases
Breast Diseases - epidemiology
Breast Diseases - etiology
Breast Diseases - pathology
Breasts
Carcinogens
Cigarette smoking
Cigarettes
Clinical trials
Consent
Epidemiologic Studies
Epidemiology
Epithelium - pathology
Experimentation
Female
Hormones
Humans
Mammography
Middle Aged
Postmenopause
Preventive medicine
Program Development
Proportional Hazards Models
Risk Assessment
Risk Factors
Smoking
Smoking - adverse effects
Smoking cessation
United States - epidemiology
Women's Health
Womens health
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Summary:Objective To investigate the association between cigarette smoking and risk of benign proliferative epithelial disorders (BPED) of the breast. Methods We used data from an ancillary study of benign breast disease that is being conducted in the Women's Health Initiative randomized clinical trials among 68,132 postmenopausal women aged 50-79 at recruitment. After following the trial participants for an average of 7.8 years, we had ascertained 294 incident cases with atypical hyperplasia and 1,498 incident cases with non-atypical BPED of the breast. We used Cox proportional hazards models to estimate hazard ratios for the association between cigarette smoking and risk of BPED. Results Smoking measures, including duration of smoking, intensity of smoking, pack-years of smoking, age at which smoking commenced, and years since quitting smoking, were not associated with risk of BPED overall or by histological subtypes. Conclusion The null association between cigarette smoking and risk of BPED of the breast suggests that the carcinogenic and antiestrogenic effects of cigarette smoking on the breast might counterbalance each other and that cigarette smoking might have no overall effects on BPED of the breast among postmenopausal women.
ISSN:0957-5243
1573-7225
DOI:10.1007/s10552-007-0116-0