Sunday, January 31, 2010

Abortion can kill you

Not just the baby.
New study links (what we already knew) abortion and oral contraception to an increased risk of breast cancer.
"An April 2009 study by Jessica Dolle et al. of the Fred Hutchinson Cancer Research Center examining the relationship between oral contraceptives (OCs) and triple-negative breast cancer (TNBC), an aggressive form of breast cancer associated with high mortality, in women under age 45, contained an admission from Dr. Brinton and her colleagues that abortion raises breast cancer risk by 40%."
More here.


OperationCounterstrike said...

There are always some studies which get the wrong answer. That's why we do many of them rather than stopping after the first one! If you look hard enough you can find studies, good ones, which say that in their samples smoking PREVENTED lung cancer.

This is called STATISTICAL NOISE. The effect of random factors.

The smaller a study is, the more likely it is to get the wrong answer because of statistical noise. This study of Dolle's was very small--looked at fewer than a thousand breast-cancer patients and fewer than two-hundred of the particular type of cancer the title refers to ("Triple-negative"). That's teeny tiny. The outcome of a study this small depends more on randomness (luck) than on the true answer to the question.

This "triple-negative" thing is very rare anyway. If my odds of suffering disaster are one in ten-million, and I do something which doubles them to TWO in ten-million, that's still not so bad!

You should most definitely go back to school and take courses in statistics and probablility, and also in epidemiology. Your post shows clearly that you do not know the basics.

WishCommandress said...

Really? Can ALL of these studies be wrong?

Studies and proof of abortion/breast cancer link

Lanfranchi, A. MD, FACS"The abortion-breast cancer link revisited", Ethics and Medics, November 2004, available at .

"Summary Report: Early Reproductive Events and Breast Cancer," U.S. National Cancer Institute, March 4, 2003. Available at:

Altman LK. New study links abortions and increase in breast cancer risk. , Oct. 27, 1994,A24.

Brewster DH, Stockton DL, Dobbie R, et al Risk of breast cancer after miscarriage or induced abortion: a Scottish record linkage casecontrol study. 2005;59:283-287.

L. Bu et al., “Risk of Breast Cancer Associated with Induced Abortion in a Population at Low Risk of Breast Cancer,” American Journal of Epidemiology 141 (1995): S85 (abstract 337).

B. Burany, “Gestational Characteristics in Women with Breast Cancer” (in Croatian) Jugoslavenska Ginekologija i Opstetricija 19.5–6 (September–December 1979): 237–247.

Carroll P. Pregnancy Related Risk Factors in Female Breast Cancer Incidence. International Congress of Actuaries, Transactions 2002;4:331-75.

Daling JR, Malone DE, Voigt LF, White E, Weiss NS. Risk of breast cancer among young women: relationship to induced abortion. J Natl Cancer Inst1994;86:1584-1592. White E, Malone KE, Weiss NS, Daling JR. Breast cancer among young US women in relation to oral contraceptive use. J Natl Cancer Inst 1994;86:505-514.

Daling JR, Brinton LA, Voigt LF, et al. Risk of breast cancer among white women following induced abortion. Am J Epidemiol 1996;144:373-380.

V.V. Devorin and A.B. Medvedev, “Role of Reproductive History in Breast Cancer Causation” (in Russian) in Methods and Results of Breast Cancer Epidemiology (Moscow: Oncology Science Center of the USSR Academy of Sciences, 1978), 53–56.

Dolle J, Daling J, White E, Brinton L, Doody D, et al. Risk factors for triple-negative breast cancer in women under the age of 45 years. Cancer Epidemiol Biomarkers Prev 2009;18(4)1157-1166.

B.M. Harris et al., “Risk of Cancer of the Breast after Legal Abortion during the First Trimester: a Swedish Register Study,” British Medical Journal 299.6713 (December 9, 1989): 1430-1432.

T. Hirohata et al., “Occurrence of Breast Cancer in Relation to Diet and Reproductive History: a Case-Control Study in Fukuoka, Japan,” National Cancer Institute Monograph 69 (December 1985): 187–190.

H.L. Howe, “Early Abortion and Breast Cancer Risk Among Women Under Age 40,” International Journal of Epidemiology 18.2 (June 1989): 300–304.

A. Laing et al., “Reproductive and Lifestyle Factors for Breast Cancer in African-American Women,” Genetic Epidemiology 11 (1994): 300.

Lanfranchi, A. Normal breast physiology: The reasons hormonal contraceptives and induced abortion increase breast cancer risk. The Linacre Quarterly 2009;76:236-249. Available at:

V. F. Levshin and A.D. Chepurko, “Reproductive Anamnesis and Breast Cancer” (in Russian) Sovetskaia Meditsina 6 (1986): 15-21.

Lindefors-Harris B-M, Eklund G, Adami H-O, Meirik O. Response bias in a case-control study: analysis utilizing comparative data concerning legal abortions from two independent Swedish studies. 1991;134:1003-1008.

Lipworth L, Katsouyanni K, Ekbom A, Michels KB, Trichopoulos D. Abortion and the risk of breast cancer: a case-control study in Greece. 1995;61:181-184.

WishCommandress said...

E. Luporsi, study in meta-analysis of N. Andrieu et al., “Familial Risk, Abortion and Their Interactive Effect on the Risk of Breast Cancer—a Combined Analysis of Six Case-Control Studies,” British Journal of Cancer 72.3 (September 1995): 744–751.

Meirik O, Adami H-O, Eklund G. Letter re: Relation between induced abortion and breast cancer. 1998;52:209-212.

Michels KB, Fei Xue MD, Colditz GA, Willett WC. Induced and spontaneous abortion and incidence of breast cancer among young women: A prospective cohort study. 2007;167:814-820.

F. Nishiyama, “The Epidemiology of Breast Cancer in Tokushima Prefecture” (in Japanese) Shikoku Ichi [Shikoku Medical Journal] 38 (1982): 333–343.

Ozmen V, Ozcinar B, Karanlik H, Cabioglu N, Tukenmez M, et al. Breast cancer risk factors in Turkish women – aUniversity Hospital based nested case control study. World J of Surg Oncol 2009;7:37.

J. R. Palmer et al., “Induced and Spontaneous Abortion in Relation to Risk of Breast Cancer,” Cancer Causes and Control 8.6 (November 1997): 841–849.

Palmer JR, Wise LA, Adams-Campbell LL, Rosenberg L. A prospective study of induced abortion and breast cancer in African-American women. 2004;15:105-111.

M.A. Rookus and F.E. van Leeuwen, “Induced Abortion and Risk for Breast Cancer: Reporting (Recall) Bias in a Dutch Case-Control Study,” Journal of the National Cancer Institute 88.23 (December 4, 1996): 1759–1764.

L. Rosenberg et al., “Breast Cancer in Relation to the Occurrence and Time of Induced and Spontaneous Abortion,” American Journal of Epidemiology 127.5 (May 1988): 981–989.

Segi M, Fukushima I, Fujisaku S, et al. An epidemiological study on cancer in Japan. GANN1957;48(Suppl):1-63.

Tang M-T C, Weiss NS, Malone K. Induced abortion in relation to breast cancer among parous women: a birth certificate registry study. 2000;11:177-180.

Xing P, Li J, Jin F. A case-control study of reproductive factors associated with subtypes of breast cancer in Northeast China. Humana Press, e-publication online September 2009.

D.G. Zairdze, study in meta-analysis of N. Andrieu et al., “Familial Risk, Abortion and Their Interactive Effect on the Risk of Breast Cancer—a Combined Analysis of Six Case-Control Studies,” British Journal of Cancer 72.3 (September 1995): 744–751.

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