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--- studies_on_the_abortion-breast_cancer_link [2015/07/16 15:06]
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+++ studies_on_the_abortion-breast_cancer_link [2015/10/25 17:08]
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 ==========Studies on the Abortion-Breast Cancer Link==========
-//Research Synthesis//: [[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://downloads.frc.org/EF/EF14B56.pdf|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.
-^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 ^
+^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 ^
 |1 |1957 |M. Segi, I. Fukushima, S. Fujisaku, M. Kurihara, S. Saito, K. Asano, and M. Kamoi, “An Epidemiological Study on Cancer in Japan,” //Japanese Journal of Cancer Research// (GANN) 48 (Suppl.) (1957): 1-63. |2.63 (1.85-3.75)* |Yes |Positive |Japan |
 |2 |1968 |H. Watanabe and T. Hirayama, “Epidemiology and Clinical Aspects of Breast Cancer,” //Nippon Rinsho// 26 (1968): 1843-1849 (in Japanese). |1.51 (0.91-2.53)* |No |Positive |Japan |
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 |71 |2013 |S. Jabeen, M. Haque, J. Islam, M.Z. Hossain, A. Begum, and M.A. Kashem, "Breast Cancer and Some Epidemiological Factors: A Hospital Based Study," //Journal of Dhaka Medical College// 22, no. 1 (2013): 61-66. |20.62 |No |Positive |Bangladesh |
 |72 |2013 |Ramchandra Kamath, Kamaleshwar S. Mahajan, Lena Ashok, T.S. Sanal, "A study on risk factors of bresat cancer among patients attending the tertiary care hospital, in Udupi district," //Indian Journal of Community Medicine// 38, no. 2 (2013): 95-99. |6.38 (.99-40.81) |No |Positive |India |
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