“a meta-analysis of the association between induced abortion and breast cancer risk among chinese females,” cancer causes control 2014 25(2): 227-36 3 american college of obstetricians and gynecologists (acog), “induced abortion and breast cancer risk. Introduction: research clearly shows abortion (also called induced abortion) does not increase the risk of breast cancer since 2003, the american college of obstetricians and gynecologists (acog) and the national cancer institute (nci) and have agreed the scientific evidence does not support a link between abortion and breast cancer [1-2. A combined analysis of 23 studies has suggested that induced abortion can slightly raise a woman's later risk of developing breast cancer the reported increase in risk of about 30 percent is. The risk of breast cancer among women with a history of induced abortion was no different from that among women without such a history, nor did we find that the number of induced abortions.
Epidemiologic studies: induced abortion and breast cancer risk updated april, 2018 breast cancer prevention institute • epidemiologic studies: induced abortion and breast cancer risk • wwwbcpinsituteorg. Induced abortion in epidemiological analysis as study induced abortion in terms of inherent cancer risk in some studies where the authors intendedto study inducedabortion amongother the issue of abortion and breast cancer was a populationbasedrecord linkage studyin upstate. Abstract we have examined the association between induced or spontaneous abortion and breast cancer risk in greece in a hospital-based case-control study in athens, 820 patients with confirmed breast cancer were compared with 795 orthopedic patient controls and 753 healthy visitor controls, matched to cases by age and interviewer. One “risk” of abortion frequently claimed by antiabortion activists is that it causes breast cancer, even if it takes science as bad as that found in a recently published epidemiological “study” on abortion and breast cancer.
Abortion (that is, a miscarriage),14 or an induced abortion, a woman’s risk of breast cancer is increased 15 after a full-term pregnancy, only about 10 to 30 percent of a mother’s breast tissue. All of a sudden, the relation of abortion to breast cancer is back in the limelight after a number of years of slowly increasing acceptance of the relationship of induced abortion to breast cancer, the american cancer institute has, in effect, thrown down the gauntlet. A new study published by scientists who examined diabetes mellitus type 2, reproductive factors, and breast cancer found a statistically significant association showing a 286-fold increased breast cancer risk from a single induced abortion.
Breast cancer is the most common cancer in women aside from skin cancer and breast cancer is the second leading cancer killer in women still, the public is not well-served by false alarms at this time, the scientific evidence does not support the notion that abortion of any kind raises the risk of breast cancer or any other type of cancer. The risk of breast cancer should be re-examined in future studies of women who have had legal abortion available to them throughout the majority of their reproductive years, with particular attention to the potential influence of induced abortion early in life. From the 1 school of public health, department of epidemiology, university of washington, seattle, wa, and 2 division of public health sciences, fred hutchinson cancer research center, seattle, wa this research was supported by a grant from the national cancer institute (r35 ca39779), and by the.
Breast cancer), the extent of under-reporting of induced abortion might well differ between the cases and controls for example, among women in a swedish case-control. The overall significant positive association between induced abortion and breast cancer incidence that we observed in our 1996 meta-analysis of published data has been disputed. Induced abortion and breast cancer risk abstract: the relationship between induced abortion and the subsequent development of breast cancer has been the subject of a substantial amount of epidemiologic study early studies of the relationship between prior induced abortion and breast cancer risk were methodologically flawed. A risk to avoid pdf version breast cancer is the second most common cancer in american women, second only to skin cancer the american cancer society estimates that in 2017, 252,710 american women will be diagnosed with invasive breast cancer and 40,610 american women will lose their lives because of breast cancer.
In case-control studies, induced abortion has long been linked to breast cancer risk a full-term pregnancy in women before the age of 35 lessens the overall risk of breast cancer, possibly by quickening breast-cell differentiation. For the case of induced abortion and breast cancer, the michels and willett review (1996) examined 19 epidemiologic studies and the brind et al review (1996) examined 21 epidemiologic studies seventeen english language studies in peer-reviewed journals were common to the two reviews. Epidemiological research supporting a relationship between abortionandbreastcancer two japanese studies showed a positive association between induced abortion and breast cancer: a 1957 study reported a statistically significant relative risk of 261, and a 1968 study. The review, titled “breast cancer and induced abortion: a comprehensive review of breast development and pathophysiology, the epidemiologic literature, and proposal for creation of databanks to.
In1964, the us surgeon general applied the newly developed bradford hill criteria for causality to the cigarette lung cancer link epidemiologic studies to warn the public these same criteria have been fulfilled by the world’s epidemiologic studies of the abortion breast cancer link. To evaluate the relationship between breast cancer risk and spontaneous and induced abortion, we conducted a detailed descriptive review of 32 epidemiologic studies that provided data by type of abortion and by various measures of exposure to abortion-number of abortions, timing of abortion in. Studies on the abortion-breast cancer link the numerical risks associated with induced abortion (and its related circumstances, which vary by study) are listed for each study below 1) the quality of the studies assessing the relationship between induced abortion and breast cancer varies. The first epidemiological study to show a link between induced abortion and breast cancer was published in 1957 in 1996, a research team i headed up published a comprehensive review and meta.