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Cited by 307

The DOI matches its Crossref record; 10 of the 10 references it cites were found in a registry or an index.

Oral contraceptive use and early abortion as risk factors for breast cancer in young women

Open access
Pike, M C, Henderson, B E, Casagrande, J T, Rosario, I, Gray, G E·1981·British Journal of Cancer

Abstract

A case-control study was conducted in Los Angeles County, California, of 163 very young breast-cancer cases (all aged 32 or less at diagnosis) to investigate the role, if any, of oral contraceptives (OC) in the development of the disease. OC use before first full-term pregnancy (FFTP) was associated with an elevated risk, which increased with duration of OC use (relative risk approximately 2.2 at 6 years of use, P < 0.01). This increased risk could not be explained by other risk factors. OC use after FFTP was not associated with any change in risk. A first-trimester abortion before FFTP, whether spontaneous or induced, was associated with a 2.4-fold increase in breast-cancer risk (P < 0.005).

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Crossref · 10.1038/bjc.1981.10

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Metadata

Authors
Pike, M. C., Henderson, B. E., Casagrande, J. T., Rosario, I., & Gray, G. E.
Venue
British Journal of Cancer
Published
1981-01
Volume
43
Issue
1
Pages
72-76
ISSN
  • 0007-0920 (ISSN-L)
  • 1532-1827
OpenAlex
W2011853205
Cited by
307
References
10
FWCI
10.95
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Oral contraceptive use and early abortion as risk factors for breast cancer in young women. https://app.cochat.ai/papers/10.1038/bjc.1981.10
The paper
Pike, M. C., Henderson, B. E., Casagrande, J. T., Rosario, I., & Gray, G. E. (1981). Oral contraceptive use and early abortion as risk factors for breast cancer in young women. British Journal of Cancer. https://doi.org/10.1038/bjc.1981.10

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.