Study Finds No Link Between Breast Cancer and Oral Contraceptives

Study Finds No Link Between Breast Cancer and Oral Contraceptives PDF Author:
Publisher:
ISBN:
Category : Breast
Languages : en
Pages : 2

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Study Finds No Link Between Breast Cancer and Oral Contraceptives

Study Finds No Link Between Breast Cancer and Oral Contraceptives PDF Author:
Publisher:
ISBN:
Category : Breast
Languages : en
Pages : 2

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Book Description


Study Finds No Link Between Breast Cancer and Oral Contraceptives

Study Finds No Link Between Breast Cancer and Oral Contraceptives PDF Author:
Publisher:
ISBN:
Category : Breast
Languages : en
Pages : 2

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Hormonal Contraception and Post-menopausal Hormonal Therapy

Hormonal Contraception and Post-menopausal Hormonal Therapy PDF Author: IARC Working Group on the Evaluation of Carcinogenic Risks to Humans
Publisher: World Health Organization
ISBN:
Category : Medical
Languages : en
Pages : 692

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Book Description
Evaluates evidence for an increased risk of cancer in women using combined oral contraceptives, progestogen-only hormonal contraceptives, post-menopausal estrogen therapy, and post-menopausal estrogen-progestogen therapy. Although the carcinogenicity of these preparations has been extensively investigated, the book stresses the many complex methodological issues that must be considered when interpreting findings and weighing results. Evidence of an association between use of these preparations and positive effects on health, including a reduced risk of some cancers, is also critically assessed. The first and most extensive monograph evaluates evidence of an association between the use of combined oral contraceptives and cancer at nine sites. Concerning breast cancer, the evaluation concludes that, even if the association is causal, the excess risk for breast cancer associated with patterns of use that are typical today is very small. Studies of predominantly high-dose preparations found an increased risk of hepatocellular carcinoma in the absence of hepatitis viruses. Citing these findings, the evaluation concludes that there is sufficient evidence in humans for the carcinogenicity of combined oral contraceptives. The evaluation also found sufficient evidence for the carcinogenicity of some, but not all, combined preparations in animals. Combined oral contraceptives were classified as carcinogenic to humans. The evaluation also cites conclusive evidence that these agents have a protective effect against cancers of the ovary and endometrium. Progestogen-only contraceptives are evaluated in the second monograph, which considers the association with cancer at six sites. The evaluation found no evidence of an increased risk for breast cancer. Although the evaluation found sufficient evidence in animals for the carcinogenicity of medroxyprogesterone acetate, evidence for the carcinogenicity of progestogen-only contraceptives in humans was judged inadequate. Progestogen-only contraceptives were classified as possibly carcinogenic to humans. The third monograph, on post-menopausal estrogen therapy, considers evidence of an association with cancer at eight sites. Findings from a large number of epidemiological studies indicate a small increase in the risk of breast cancer in women who have used these preparations for five years or more. Studies consistently show an association between use of post-menopausal estrogen therapy and an increased risk for endometrial cancer. Data on the association with other cancers were either inconclusive or suggested no effect on risk. The evaluation concludes that post-menopausal estrogen therapy is carcinogenic to humans. The final monograph evaluates the association between the use of post-menopausal estrogen-progestogen therapy and cancer at four sites. The evaluation of limited data on breast cancer found an increased relative risk observed with long-term use. Data were judged insufficient to assess the effects of past use and of different progestogen compounds, doses, and treatment schedules. For endometrial cancer, the evaluation found an increase in risk relative to non-users when the progestogen was added to the cycle for 10 days or fewer. Post-menopausal estrogen-progestogen therapy was classified as possibly carcinogenic to humans. Concerning post-menopausal therapy in general, the book notes that evidence of carcinogenic risks must be placed in perspective of potential benefits. The prevention of osteoporotic fractures is cited as the best-established benefit. Evidence also suggests that estrogen prevents heart disease and may prevent memory loss and dementia.

Oral Contraceptives and Breast Cancer

Oral Contraceptives and Breast Cancer PDF Author: Institute of Medicine
Publisher: National Academies Press
ISBN: 0309044936
Category : Medical
Languages : en
Pages : 196

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Book Description
At least 10.7 million American women use oral contraceptives (OCs). The potential connection with breast cancer has caused concern among these OC users and uncertainty among many of their physicians. This new volume offers the most up-to-date information available on this critical topic. While the best available knowledge does not support any fundamental change in clinical practice with respect to the use of OCs, this book offers specific recommendations for more research to fully resolve the relationship between OCs and breast cancer. Noting consumer confusion, the volume includes a concise summary of benefits, risks, and other practical information for contraceptive users and their doctors. The volume presents current data on changes in patterns of OC use, differences in risk at different ages, the benefits of OCs, and more. Oral Contraceptives and Breast Cancer will be important reading for obstetricians/gynecologists and other health professionals, their patients who use OCs, contraceptive manufacturers, women's health advocates, policymakers, and researchers.

Contraception and Reproduction

Contraception and Reproduction PDF Author: Working Group on the Health Consequences of Contraceptive Use and Controlled Fertility
Publisher:
ISBN:
Category :
Languages : es
Pages : 0

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Book Description
Se estudian las consecuencias sanitarias de los diferentes patrones reproductivos en la salud de la mujer y de los niƱos. Tambien se evaluan el riesgo y los beneficios de los diferentes metodos anticonceptivos, aunque algunos de los datos en los que se basa son de paises desarrollados, el nucleo central del informe son los paises en desarrollo.

Contraceptive Use and Controlled Fertility

Contraceptive Use and Controlled Fertility PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309040965
Category : Medical
Languages : en
Pages : 172

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Book Description
These four papers supplement the book Contraception and Reproduction: Health Consequences for Women and Children in the Developing World by bringing together data and analyses that would otherwise be difficult to obtain in a single source. The topics addressed are an analysis of the relationship between maternal mortality and changing reproductive patterns; the risks and benefits of contraception; the effects of changing reproductive patterns on infant health; and the psychosocial consequences to women of controlled fertility and contraceptive use.

Oral Contraceptives and Breast Cancer: The Implications of the Present Findings for Informed Consent and Informed Choice

Oral Contraceptives and Breast Cancer: The Implications of the Present Findings for Informed Consent and Informed Choice PDF Author: R.D. Mann
Publisher: CRC Press
ISBN: 9781850702825
Category : Medical
Languages : en
Pages : 426

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Book Description
A collection of the proceedings presented at the Royal Society of Medicine by American and European researchers involved in longterm studies on oral contraceptives. Topics include reviews of case-control studies on contraceptive use before the age of 25 or the first full-term pregnancy.

Breast Cancer

Breast Cancer PDF Author: Chris Kahlenborn
Publisher: One More Soul
ISBN: 9780966977738
Category : Abortion
Languages : en
Pages : 404

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Modern Oral Contraception

Modern Oral Contraception PDF Author: Melinda Wallach
Publisher:
ISBN: 9780965174527
Category : Medical
Languages : en
Pages : 308

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Current Contraceptive Status Among Women Aged 15-44;: United States, 2011-2013

Current Contraceptive Status Among Women Aged 15-44;: United States, 2011-2013 PDF Author: Kimberly Daniels
Publisher:
ISBN:
Category : Birth control
Languages : en
Pages : 12

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