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Abortion History & Breast

Cancer Risk: Shanghai study

6/03 Every review, and the vast majority of studies agree there is NO connection between induced abortion and breast cancer risk. See for yourself.

ABSTRACT: Abortion history and breast cancer risk: Results from the Shanghai breast cancer study [05/08/2001; International Journal of Cancer]

Studies of the association between induced abortion and breast cancer risk have been inconsistent, perhaps due to underreporting of abortions. Induced abortion is a well-accepted family planning procedure in China, and women who have several induced abortions do not feel stigmatized.

The authors used data from a population-based case-control study of breast cancer among women age 25-64 conducted between 1996 and 1998 in urban Shanghai to assess whether a history of and the number of induced abortions were related to breast cancer risk. In-person interviews were completed with 1,459 incident breast cancer cases ascertained through a population-based cancer registry, and 1,556 controls randomly selected from the general population in Shanghai (with respective response rates of 91% and 90%).

After adjusting for confounding, there was no relation between ever having had an induced abortion and breast cancer (odds ratio [OR] = 0.9, 95% confidence interval [CI] 0.7-1.2). Women who had 3 or more induced abortions were not at increased risk of premenopausal breast cancer (OR = 0.9, 95% CI 0.6-1.4) or postmenopausal breast cancer (OR = 1.3, 95% CI 0.8-2.3).

These results suggest that a history of several induced abortions has little influence on breast cancer risk in Chinese women.

Thanks to breastcancer.net


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padAbortion & BC-Review Finds Insufficient Data
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Lancet Oncology 12/01
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NO LINK per NCI Workshop
NO Association Found-80,000 women Studied
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padJudge Dismisses Suit Attempting to Link Bca/Abortions
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Feminist Daily News Wire, March 21, 2002
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padBca/Abortion in Chinese Women (China)
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British J Cancer, 10/02 NO trend toward risk
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padAbortions/Bca:Records-based Case-Control Study
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Intl J Cancer, 2/03
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padAbortion & Breast Cancer:NYTimes Editorial
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January 2003
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Blaming Breast Cancer on Abortion, 2002
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padInduced/Spontaneous Abortion & Bca Risk: None
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Int J Cancer, 8/03
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Null Assoc Pregnancy Termination & Bca
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padContraceptive methods, Induced Abortion & Colon Ca
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Euro J Cancer, 3/04
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