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abortion-breast_cancer_link [2015/09/14 19:35] marri [1. Biology of the Link] |
abortion-breast_cancer_link [2022/03/23 16:14] (current) |
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+ | ==========Abortion and Breast Cancer Link========== | ||
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+ | Developmental biology and the results of [[studies_on_the_abortion-breast_cancer_link|epidemiological]]((Epidemiology is "a branch of medical science that deals with the incidence, distribution, | ||
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+ | [[studies_that_deny_the_abortion-breast_cancer_link|Studies]] often cited as demonstrating no link between induced abortion and breast cancer are fatally flawed. As such, these studies are insufficient evidence for the claim that induced abortion has no influence on a woman’s risk of breast cancer. | ||
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+ | By contrast, many studies—none perfect, but some characterized by better [[common_problems_in_abortion-breast_cancer_studies|method]] —show induced abortion to have an influence on breast cancer risk. This influence is found in many [[studies_that_confirm_the_abortion-breast_cancer_link|studies]] to be positive, | ||
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+ | =====1. Biology of the Link===== | ||
+ | //(See [[biology_of_the_abortion-breast_cancer_link|Biology of the Abortion-Breast Cancer Link]])// | ||
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+ | The developmental biology of changes in the breast that occur during puberty and during a normal pregnancy supports the existence of an independent link between induced abortion and breast cancer. | ||
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+ | During the first half of [[effects_of_pregnancy_on_breast_cancer_risks|pregnancy]], | ||
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+ | This entry draws heavily from [[http:// | ||
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+ | If a woman has an induced abortion (presumably prior to 32 weeks), her breasts will contain an increased number of Type 1 and Type 2 lobules and will not have developed sufficient cancer-resistant Type 4 lobules. The longer a woman is pregnant before an induced abortion, the more cancer-vulnerable Type 1 and Type 2 lobules she will develop. | ||
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+ | =====2. Studies on the Link===== | ||
+ | //(See [[studies_on_the_abortion-breast_cancer_link|Studies on the Abortion-Breast Cancer Link]])// | ||
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+ | An assessment of [[studies_on_the_abortion-breast_cancer_link|studies]] from 1957 through 2013 examining the induced [[biology_of_the_abortion-breast_cancer_link|abortion-breast cancer link]] reveal a number of [[reporting_bias_in_abortion-breast_cancer_studies|biases]] and [[common_problems_in_abortion-breast_cancer_studies|problems]] in epidemiological studies of the induced abortion and breast cancer link. These include: | ||
+ | * Incomplete questionnaire, | ||
+ | * Health bias or survivor bias | ||
+ | * Incorrect time frame | ||
+ | * Unsophisticated analysis and unsuitable comparisons | ||
+ | * Reporting and abortion law changes | ||
+ | * Omitted variable bias | ||
+ | * Incomplete reporting and distinguishing between spontaneous and induced abortions | ||
+ | * Publication bias | ||
+ | * Insufficient sample randomization | ||
+ | * Very small sample size | ||
+ | * No distinction between first- and second-trimester spontaneous abortions | ||
+ | * Incomplete explanation of model | ||
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+ | At least two major epidemiological studies that have minimal flaws, the [[studies_that_confirm_the_abortion-breast_cancer_link|1989 Remmenick study]] and [[studies_that_confirm_the_abortion-breast_cancer_link|2007 Carroll study]], show a strong association between induced abortion and breast cancer. | ||
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+ | It is important that to build a research network from existing breast centers that are FDA-regulated and accredited by the National Accreditation Program of Breast Centers to eliminate major gaps in existing literature. | ||