Contraception (Birth Control) and Family Planning PubHealthInfo

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PubHealth.info® (a subsidiary of PakMed) presents scientific information mainly based on abstracts of articles published on a variety of public health issues/topics, particularly encompassing population planning, disease prevention, maternal and child health, and communicable and non-communicable diseases (like HIV AIDS, malaria, etc) that are affecting a significant portion of population in developing and developed countries. Here you can find abstracts of articles published on a variety of public health topics under category "Contraception (Birth Control) and Family Planning". Contraception (birth control) is a regimen of one or more actions, devices, or medications followed in order to deliberately prevent or reduce the likelihood of a woman becoming pregnant or giving birth. Therefore contraception is the utilization of various and sundry surgical procedures, devices, practices, agents, or drugs with the intention of preventing conception or impregnation (pregnancy). Methods and intentions typically termed birth control may be considered a pivotal ingredient to family planning. Birth control is a controversial political and ethical issue in many cultures and religions, and although it is generally less controversial than abortion specifically.

YEAR: 1997

CATEGORY: Contraception (Birth Control) and Family Planning

TITLE

A prospective study of oral contraceptive use and risk of breast cancer

(Nurses' Health Study, United States)

AUTHORS

Hankinson SE; Colditz GA; Manson JE; Willett WC; Hunter DJ; Stampfer MJ;

Speizer FE

SOURCE

CANCER CAUSES AND CONTROL. 1997 Jan;8(1):65-72.

ABSTRACT

Results of previous epidemiologic studies have provided reassurance that there is little, if any, increase in risk of

breast cancer with oral contraceptive (OC) use in general. However, in several studies, an increased risk of breast

cancer has been observed in two subgroups, young women who used OCs for extended durations and in women who

used OCs prior to a first-term pregnancy. The authors evaluated these relationships using data from the ongoing

Nurses' Health Study cohort (US). The authors documented 3383 cases of breast cancer from 1976 to 1992 among

1.6 million person-years of follow-up. The authors observed no overall relationship between duration of OC use and

breast cancer risk, even among women who reported using OCs for 10 or more years (multivariate relative risk [RR] =

1.11, 95% confidence interval [CI] = 0.94-1.32). Among women less than 45 years of age, the multivariate RR for

using OCs for 10 or more years was 1.07 (CI = 0.70-1.65) compared with never-users. The risk associated with 5 or

more years of OC use prior to a first full-term pregnancy compared with never-use was 0.96 (CI = 0.65-1.43). Among

women less than 45 years of age, the authors observed no evidence of an increased risk with OC use before a first

full-term pregnancy (use for 5 or more years: RR = 0.57, CI = 0.24-1.31). Because of the age distribution of the

authors' cohort, the authors were unable to evaluate these relationships among women less than 40 years of age.

This study provides considerable evidence that long-term past OC use, either overall or prior to a first full-term

pregnancy, does not result in any appreciable increase in breast cancer risk in women over 40 years of age.

(PubHealth.info Document ID: CONT2T 1012-06)

PubHealth.info NOTE: The author(s) of this article titled, "A prospective study of oral contraceptive use and risk of

breast cancer (Nurses' Health Study, United States)", is(are) Hankinson SE; Colditz GA; Manson JE; Willett WC;

Hunter DJ; Stampfer MJ; Speizer FE. The source of this article is "CANCER CAUSES AND CONTROL. 1997

Jan;8(1):65-72.". This article was published in 1997 in English language(s). (PubHealth.info® Document ID:

CONT2T 1012-06. All rights reserved with PubHealth.info) PIN: 6012

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