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. 1981 Jun 27;282(6282):2089–2093. doi: 10.1136/bmj.282.6282.2089

Breast cancer and oral contraceptives: findings in Royal College of General Practitioners' study.

PMCID: PMC1506508  PMID: 6788214

Abstract

The incidence of breast cancer was studied among women taking part in the continuing cohort study organised by the Royal College of General Practitioners. An overall relative risk of 1.19 (not significant) was found in those who had used oral contraceptives. The risk ratio in women under 35 years old was 2.81, but this too was not significant. There was evidence that the estimated increased risk for younger women could be a chance occurrence. No convincing evidence of any adverse effects of oral contraceptives on breast cancer has been shown, but because of the long latent period of this tumour there is a need for longer observation.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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