"Between 2008 and 2010, abortion rates in CHOICE [study] participants ranged from 4.4 to 7.5 per 1,000 after adjusting for age and race. These rates are considerably less than the rates in St. Louis City and County for the same years and far below the national rate of 19.6 per 1,000. Using these data, we then estimated the difference in abortion rates and number of abortions prevented each year if CHOICE were available to the entire population of the region. Based on the number needed to treat, one abortion could be prevented for every 79–137 women and teenagers provided the CHOICE intervention.In the first year of the study, providing birth control for more than 9,000 women prevented an estimated 3,000 pregnancies that would have likely resulted in abortions. In comparison to women from the surrounding area in the same socio-economic bracket, the number of abortions in subsequent years was reduced by nearly 2,000 per year.
".... changes in contraceptive policy simulating the Contraceptive CHOICE Project would prevent as many as 62–78% of abortions performed annually in the United States."
The study -- done by Jeffrey F. Peipert, Tessa Madden, Jenifer E. Allsworth and Gina M. Secura at the Washington University School of Medicine -- concludes that this is a "a clinically and statistically significant reduction in abortion rates," supporting the idea that "Unintended pregnancies may be reduced by providing no-cost contraception and promoting the most effective contraceptive methods."
Providing "no-cost contraception" is exactly what Obamacare would do, if not gutted or repealed by Republicans.