It's a pdf link from the NY State Dept. of Health about the high rate of breast cancer on Long Island.
CORAM, MT. SINAI, PORT JEFFERSON STATION (CMP) FOLLOW-UP INVESTIGATION
BREAST CANCER RISK FACTORS with references starts on page 25.
“The importance of reproductive factors in affecting breast cancer risk has been known for a long time. Women who have never given birth (or had a full-term pregnancy) are at a higher risk for breast cancer compared to women who have carried a pregnancy to term.”(Page 26)
If you want to search, I'd enter (termination of pregnancy or TOP or abortion) and breast cancer into PubMed. Look for Related Links in the upper right of the individual abtracts. Here's one of them that's a 90 % increase.
Induced abortion and risk for breast cancer: reporting (recall) bias in a Dutch case-control study.
The theory behind it is that the breast tissue was not allowed to completely develop from the whole sequence of hormonal changes when interrupted by an abortion. These semi-developed breasts are now prone to cancer. Many of the studies report no statistically significant correlation because the women in question are still relatively young, i.e. they're lame studies done for political correctness, or other methodological problems.
For a pro-lifer, anti-abortion mother of five, with no history of miscarriages or elective abortions - it is disheartening to learn that a diagnosis of breast cancer (and that of other women) has one more perceived identity malignancy to overcome.
I’ll stick with genetic disposition, hormonal prescriptions and post-partum lactation medication.
Kindly
sp