In 2003, acting under the auspices of the U.S. National Cancer Institute,
researcher Dr. Louise Brinton declared that it was well established
that there is no abortion-breast cancer link.
She has now reversed her position and admits that women who have had abortions
face a 40% increased risk of contracting breast cancer.
http://www.lifesitenews.com/ldn/2010/jan/10010706.html
http://www.abortionbreastcancer.com/download/Brind_Dolle_2009_analysis.PDF

Should Australian women be told of this development,
or would this be anti-choice?

I Googled it. Before forming an opinion I'll wait until an agency not run by fundamentalist Christians reports and asks some relevant questions.

Christians don't have a great track record on reporting the statements of scientists: http://en.wikipedia.org/wiki/Fallacy_of_quoting_out_of_context#Quote_mining

40% increased risk of contracting breast cancer?.
And a 100% less risk of complications in pregnancy.

I could be wrong, but I'd suggest that perhaps Herman has
a hidden agenda here, like hoping that Xtians will outbreed
Muslims etc.

Sorry, its not going to work.

Herman, don't you mean the the multivariate adjusted case-control odds ratios among women 45 y of age and younger, from case studies of primary invasive breast cancers within the three-county Seattle metropolitan area, diagnosed between January 1, 1983, and December 31, 1992? Where unordered polytomous logistic regression was used to determine odds ratios as an approximation of the relative risk and found that ever having and abortion produced an odds ratio of 1.4 with 95% CIs between 0.9-2.2 for triple negative breast cancer and 1.1-1.8 for all breast cancers?
Which, if extrapolated to the wider population using the National Cancer Institute's (USA) 12.7 percent of women born in the United States today will develop breast cancer at some time in their lives, means that the relative risk is maybe an extra 5%. For the more dangerous triple negative breast cancers though, since non-black women have about a 11-13% rate of breast cancer being the triple-negative type, it may raise your chances by a whopping 0.5%! (if you're not black that is, black women have a three times higher rate of triple negative cancers, where ~30% of breast cancer cases are triple-negative).

Assuming of course that the few hundred women interviewed in Seattle are representative of the wider world of course.

Yes, I think all women should be informed of this if they are concerned. No, I don't believe that it would be anti-choice to do so.

Herman, you couldn't give a damn about the remote possibility that abortion could 'cause' breast cancer.

You would just like to stop all legal abortions and go back to the 'good old days' where women churned out one baby after another, without any choice. Don't hold your breath on that one Herman.

There are far more 'natural abortions' (miscarriages) that occur amongst women than through surgical/medical abortions.
Shall we look into the lives of all these women and see if their God-given miscarriages 'caused' breast cancer among them too?