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Oral contraceptives and breast cancer.
Am J Epidemiol. 1980 Nov; 112(5):577-85.AJ

Abstract

The incidence of breast cancer among users and non-users of oral contraceptives (OCs) was determined at Group Health Cooperative of Puget Sound, Seattle, Washington, a health care organization which maintains computer files of diagnoses and outpatient drug use. In women 45 years of age or younger, the incidence was nearly identical in users and non-users. In premenopausal women over 45 years of age, there was a positive association between current OC use and breast cancer, the risk ratio estimates and 90% confidence intervals being 4.0 (1.8-9.0) in women 46-50 years of age and 15.5 (5.2-46) in women 51-55 years of age.

Authors

No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

7435486

Citation

Jick, H, et al. "Oral Contraceptives and Breast Cancer." American Journal of Epidemiology, vol. 112, no. 5, 1980, pp. 577-85.
Jick H, Walker AM, Watkins RN, et al. Oral contraceptives and breast cancer. Am J Epidemiol. 1980;112(5):577-85.
Jick, H., Walker, A. M., Watkins, R. N., D'Ewart, D. C., Hunter, J. R., Danford, A., Madsen, S., Dinan, B. J., & Rothman, K. J. (1980). Oral contraceptives and breast cancer. American Journal of Epidemiology, 112(5), 577-85.
Jick H, et al. Oral Contraceptives and Breast Cancer. Am J Epidemiol. 1980;112(5):577-85. PubMed PMID: 7435486.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Oral contraceptives and breast cancer. AU - Jick,H, AU - Walker,A M, AU - Watkins,R N, AU - D'Ewart,D C, AU - Hunter,J R, AU - Danford,A, AU - Madsen,S, AU - Dinan,B J, AU - Rothman,K J, PY - 1980/11/1/pubmed PY - 1980/11/1/medline PY - 1980/11/1/entrez KW - Age Factors KW - Americas KW - Breast Cancer KW - Cancer KW - Contraception KW - Contraceptive Methods--side effects KW - Developed Countries KW - Diseases KW - Education KW - Ethnic Groups KW - Family Planning KW - Incidence KW - Mammary Gland Effects KW - Measurement KW - Menarche KW - Menopause KW - Neoplasms KW - North America KW - Northern America KW - Oral Contraceptives--side effects KW - Research Methodology KW - United States KW - Washington SP - 577 EP - 85 JF - American journal of epidemiology JO - Am. J. Epidemiol. VL - 112 IS - 5 N2 - The incidence of breast cancer among users and non-users of oral contraceptives (OCs) was determined at Group Health Cooperative of Puget Sound, Seattle, Washington, a health care organization which maintains computer files of diagnoses and outpatient drug use. In women 45 years of age or younger, the incidence was nearly identical in users and non-users. In premenopausal women over 45 years of age, there was a positive association between current OC use and breast cancer, the risk ratio estimates and 90% confidence intervals being 4.0 (1.8-9.0) in women 46-50 years of age and 15.5 (5.2-46) in women 51-55 years of age. SN - 0002-9262 UR - https://www.unboundmedicine.com/medline/citation/7435486/Oral_contraceptives_and_breast_cancer_ L2 - https://academic.oup.com/aje/article-lookup/doi/10.1093/oxfordjournals.aje.a113030 DB - PRIME DP - Unbound Medicine ER -