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Oral contraceptives and breast cancer.
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 o...
Autores principales: | , , , |
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Formato: | Texto |
Lenguaje: | English |
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Nature Publishing Group
1989
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2247141/ https://www.ncbi.nlm.nih.gov/pubmed/2713248 |
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author | Jick, S. S. Walker, A. M. Stergachis, A. Jick, H. |
author_facet | Jick, S. S. Walker, A. M. Stergachis, A. Jick, H. |
author_sort | Jick, S. S. |
collection | PubMed |
description | 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. |
format | Text |
id | pubmed-2247141 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 1989 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-22471412009-09-10 Oral contraceptives and breast cancer. Jick, S. S. Walker, A. M. Stergachis, A. Jick, H. Br J Cancer Research Article 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. Nature Publishing Group 1989-04 /pmc/articles/PMC2247141/ /pubmed/2713248 Text en https://creativecommons.org/licenses/by/4.0/This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Research Article Jick, S. S. Walker, A. M. Stergachis, A. Jick, H. Oral contraceptives and breast cancer. |
title | Oral contraceptives and breast cancer. |
title_full | Oral contraceptives and breast cancer. |
title_fullStr | Oral contraceptives and breast cancer. |
title_full_unstemmed | Oral contraceptives and breast cancer. |
title_short | Oral contraceptives and breast cancer. |
title_sort | oral contraceptives and breast cancer. |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2247141/ https://www.ncbi.nlm.nih.gov/pubmed/2713248 |
work_keys_str_mv | AT jickss oralcontraceptivesandbreastcancer AT walkeram oralcontraceptivesandbreastcancer AT stergachisa oralcontraceptivesandbreastcancer AT jickh oralcontraceptivesandbreastcancer |