Two of Three Meta-Analyses Now Support Link Between Abortion and Breast cancer
The following statement was released by the Coalition on Abortion/Breast Cancer on Dec. 2, 2013.
A systematic review and meta-analysis of 36 Chinese studies, published by Dr. Yubei Huang and his colleagues in the prestigious journal Cancer Causes Control, last week reported a significant 44 percent increased breast cancer risk among women with at least one induced abortion (IA), compared to women without induced abortions.
The risk increased with number of IAs (a dose effect), an important measure of a cause-effect relationship. Having two and three IAs raised risk by a statistically significant 76 percent and 89 percent, respectively. Earlier studies also found a dose effect.[2,3,4,5]
Huang’s team cited and supports a 1996 review and meta-analysis led by Dr. Joel Brind and colleagues at Penn State, who found a 30 percent risk elevation for women with any history of IAs. Huang’s team agreed with criticism from Brind and Dr. Vernon Chinchilli in the British Journal of Cancer concerning two high profile Shanghai studies.[8,9]
In his analysis of the Chinese study, Brind called it a “game changer.” He said, “Not only does it validate our earlier findings from 1996, but its findings are even stronger, for several reasons.”
Significantly, Brind argued that insurance under Obamacare funds abortion and contraceptive steroids (i.e. the Pill) which will be disastrous for women’s health.
Huang’s team said their results differed from those of a 2004 meta-analysis by Dr. Valerie Beral and her colleagues. Beral’s paper, which claimed there was no link between induced abortion and breast cancer, received harsh criticism in seven medical journals from four experts independently of one another.[11,12,13,14,15,16,17]
Karen Malec, president of the Coalition on Abortion/Breast Cancer, said, “Our organization and the Breast Cancer Prevention Institute — which Dr. Brind co-founded — are among the groups that collaborated on an amicus brief in three lawsuits against Obamacare’s contraceptive mandate. Last month, a federal appellate court cited the brief which reports the World Health Organization’s classification of the Pill as a Group 1 carcinogen; and the U.S. Supreme Court announced it would hear those lawsuits.”
The Coalition on Abortion/Breast Cancer is an international women’s organization founded to protect the health and save the lives of women by educating and providing information on abortion as a risk factor for breast cancer.
1. Huang Y, Zhang X, Li W, Song F, Dai H, Wang J, et al. A meta-analysis of the association between induced abortion and breast cancer risk among Chinese females. Cancer Causes Control. Published online, ahead of print, November 24, 2013. Available only to authorized users. Abstract available at U.S. National Library of Medicine.
2. Lecarpentier J, Nogues C, Mouret-Fourme E, Gauther-Villars M, Lasset C, et al. Variation in breast cancer risk associated with factors related to pregnancies according to truncating mutation location, in the French National BRCA1/2 carrier cohort. Breast Cancer Research 2012;14:R99.
3. Bu L, Voigt L, Yu Z, Malone K, Daling J. Risk of breast cancer associated with induced abortion in a population at low risk of breast cancer. Am J Epidemiol 1995;141:S85. (Abstract).
4. Jiang AR, Gao CM, Ding JH, Li SP, Liu YT, Cao HX, Wu JZ, Tang JH, Qian Y, Tajima K. Abortions and breast cancer risk in premenopausal and postmenopausal women in Jiangsu Province of China. Asian Pacific J Cancer Prev 2012;13:33-35.
5. Yanhua C, Geater A, You J, Li L, Shaoqiang Z, et al. Reproductive variables and risk of breast malignant and benign tumours in Yunnan Province, China. Asian Pacific J Cancer Prev 2012;13:2179-2184. .
6. Brind J, Chinchilli V, Severs W, Summy-Long J. Induced abortion as an independent risk factor for breast cancer: a comprehensive review and meta-analysis. J Epidemiol Community Health 1996;50:481-496.
7. Brind J, Chinchilli VM. Letter. Breast cancer and induced abortions in China. Br J Cancer 2004;90:2244-46.
8. Sanderson M, Shu X-O, Jin F, Dai Q, Wen W, Hua Y, Gao Y-T, Zheng W. Abortion history and breast cancer risk: results from the Shanghai breast cancer study. Int J Cancer 2001;92:899-905.
9. Ye Z, Gao DL, Qin Q, Ray RM, Thomas DB. Breast cancer in relation to induced abortions in a cohort of Chinese women. Br J Cancer 2002;87:977-981.
10. Beral V, Bull D, Doll R, Peto R, Reeves G. Collaborative Group of Hormonal Factors in Breast Cancer. Breast cancer and abortion: collaborative reanalysis of data from 53 epidemiological studies, including 83,000 women with breast cancer from 16 countries. Lancet 2004;363:1007-16.
11. Schlafly A. Legal implications of a link between abortion and breast cancer. J Am Phys Surgeons 2005;10:11-14.
12. Brind J. The abortion-breast cancer connection. National Catholic Bioethics Quarterly Summer 2005; p. 303-329.
13. Lanfranchi A. The abortion-breast cancer link revisited. Ethics and Medics (November 2004) Vol. 29, No. 11, p. 1-4.
14. Furton E. The corruption of science by ideology. Ethics and Medics (Dec. 2004) Vol. 29, No. 12, p. 1-2.
15. Brind J. Induced abortion as an independent risk factor for breast cancer: A critical review of recent studies based on prospective data. J Am Phys Surg Vol. 10, No. 4 (Winter 2005) 105-110. Available at: .
16. Lanfranchi A. The breast physiology and the epidemiology of the abortion breast cancer link. Imago Hominis 2005;12(3): 228-236.
17. Lanfranchi A. The science, studies and sociology of the abortion-breast cancer link. Research Bulletin 2005;18:1-8.
18. “Federal appeals court slaps down ObamaCare Mandate, Says World Health Organization Classified the birth control pill as cancer-causing,” Press release, Coalition on Abortion/Breast Cancer, November 7, 2013.
19. “Coalition on Abortion/Breast Cancer to file amicus brief with Supreme Court stating World Health Organization classifies the Pill as Group 1 carcinogen,” Press release, Coalition on Abortion/Breast Cancer, November 27, 2013.