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--- studies_on_the_abortion-breast_cancer_link [2015/09/14 20:25]
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+++ studies_on_the_abortion-breast_cancer_link [2017/06/12 18:00]
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 ==========Studies on the Abortion-Breast Cancer Link==========
-//Research Synthesis Paper//: [[http://downloads.frc.org/EF/EF14B56.pdf|Induced Abortion and Breast Cancer]]
+The numerical risks associated with induced abortion (and its related circumstances, which vary by study) are listed for each study below.((This entry draws heavily from [[http://marri.us/research/research-papers/induced-abortion-and-breast-cancer/|Induced Abortion and Breast Cancer]].)) The [[common_problems_in_abortion-breast_cancer_studies|quality of the studies]] assessing the relationship between induced abortion and breast cancer varies. Many studies concerning breast cancer risk have shown induced abortion to be a risk for breast cancer, in both western and non-western societies. Of the 72 epidemiological studies we have assessed that differentiate induced from spontaneous abortions (or whose data have been re-analyzed to do so), 21 studies show some positive and significant relationship between induced abortion and breast cancer. Seven studies show a positive and marginally significant relationship between the two. Two ecological epidemiological studies have also shown an association between the two.
-The numerical risks associated with induced abortion (and its related circumstances, which vary by study) are listed for each study below. The [[common_problems_in_abortion-breast_cancer_studies|quality of the studies]] assessing the relationship between induced abortion and breast cancer varies. Many studies concerning breast cancer risk have shown induced abortion to be a risk for breast cancer, in both western and non-western societies. Of the 72 epidemiological studies we have assessed that differentiate induced from spontaneous abortions (or whose data have been re-analyzed to do so), 21 studies show some positive and significant relationship between induced abortion and breast cancer. Seven studies show a positive and marginally significant relationship between the two. Two ecological epidemiological studies have also shown an association between the two.
 ^No. ^Year ^Reference ^OR or RR (95% CI)((**BC**- Breast cancer \\ **IA**- Induced abortion \\ **FFTP**- First full-term pregnancy \\ **Luminal A cancer**- Estrogen positive and HER2 negative \\ **Nulliparous**- Has never given birth \\ **Parous**- Has given birth \\ *Odds ratio obtained from 1996 Brind)) ^Statistically Significant ^Positive or Negative Correlation ^Country or Population ^