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Oral contraceptives and breast cancer.
Br J Cancer. 1989 Apr; 59(4):618-21.BJ

Abstract

A population-based case-control study of oral contraceptive use and breast cancer was carried out among young women (less than 43 years of age) at Group Health Cooperative of Puget Sound, Seattle, Washington. Use of oral contraceptives before first pregnancy did not materially differ between cases or controls. The rate ratio estimate of breast cancer incidence in women who had used oral contraceptives before first pregnancy compared to those who had not was 0.9 (95% CI = 0.4, 2.1). There were no meaningful patterns of association between breast cancer and duration of use or formulation of oral contraceptive used before first pregnancy.

Authors+Show Affiliations

Boston Collaborative Drug Surveillance Program, Boston University Medical Center, Waltham, MA 02154.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

2713248

Citation

Jick, S S., et al. "Oral Contraceptives and Breast Cancer." British Journal of Cancer, vol. 59, no. 4, 1989, pp. 618-21.
Jick SS, Walker AM, Stergachis A, et al. Oral contraceptives and breast cancer. Br J Cancer. 1989;59(4):618-21.
Jick, S. S., Walker, A. M., Stergachis, A., & Jick, H. (1989). Oral contraceptives and breast cancer. British Journal of Cancer, 59(4), 618-21.
Jick SS, et al. Oral Contraceptives and Breast Cancer. Br J Cancer. 1989;59(4):618-21. PubMed PMID: 2713248.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Oral contraceptives and breast cancer. AU - Jick,S S, AU - Walker,A M, AU - Stergachis,A, AU - Jick,H, PY - 1989/4/1/pubmed PY - 1989/4/1/medline PY - 1989/4/1/entrez KW - Age Factors KW - Biology KW - Breast Cancer KW - Cancer KW - Contraception KW - Contraceptive Methods KW - Control Groups KW - Data Analysis KW - Demographic Factors KW - Diseases KW - Family Planning KW - Fertility KW - Fertility Measurements KW - First Pregnancy Intervals KW - Matched Groups KW - Neoplasms KW - Oral Contraceptives KW - Parity KW - Population KW - Population Characteristics KW - Population Dynamics KW - Pregnancy KW - Pregnancy Intervals KW - Primiparity KW - Reproduction KW - Research Methodology KW - Risk Factors KW - Statistical Regression KW - Time Factors SP - 618 EP - 21 JF - British journal of cancer JO - Br. J. Cancer VL - 59 IS - 4 N2 - A population-based case-control study of oral contraceptive use and breast cancer was carried out among young women (less than 43 years of age) at Group Health Cooperative of Puget Sound, Seattle, Washington. Use of oral contraceptives before first pregnancy did not materially differ between cases or controls. The rate ratio estimate of breast cancer incidence in women who had used oral contraceptives before first pregnancy compared to those who had not was 0.9 (95% CI = 0.4, 2.1). There were no meaningful patterns of association between breast cancer and duration of use or formulation of oral contraceptive used before first pregnancy. SN - 0007-0920 UR - https://www.unboundmedicine.com/medline/citation/2713248/Oral_contraceptives_and_breast_cancer_ L2 - https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/2713248/ DB - PRIME DP - Unbound Medicine ER -