Oral Contraceptives and Breast Cancer: Latest Findings
Author Information
Author(s): M.P. Vessey, K. McPherson, L. Villard-Mackintosh, D. Yeates
Primary Institution: Department of Community Medicine and General Practice, Radcliffe Infirmary, Oxford, UK
Hypothesis
Does the use of oral contraceptives increase the risk of breast cancer in women aged 25-39?
Conclusion
The study found no evidence that oral contraceptive use increases breast cancer risk in mature women.
Supporting Evidence
- The study followed 17,032 women over several years.
- 189 cases of breast cancer were diagnosed among the participants.
- Previous studies have shown no adverse effect of oral contraceptives on breast cancer risk.
Takeaway
This study looked at a lot of women to see if taking the pill makes them more likely to get breast cancer, and it found that it doesn't.
Methodology
The study analyzed breast cancer incidence rates among users and non-users of oral contraceptives and conducted case-control analyses.
Limitations
The study had little exposure to the pill before first term pregnancy and virtually none at a very young age.
Participant Demographics
Women aged 25-39, primarily white British, recruited from family planning clinics.
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