When price wasn't an issue, women flocked to the most effective contraceptives — the implanted options, which typically cost hundreds of dollars up-front to insert. These women experienced far fewer unintended pregnancies as a result, reported Dr. Jeffrey Peipert of Washington University in St. Louis in a study published Thursday.
The effect on teen pregnancy was striking: There were 6.3 births per 1,000 teenagers in the study. Compare that to a national rate of 34 births per 1,000 teens in 2010.
There also were substantially lower rates of abortion, when compared with women in the metro area and nationally: 4.4 to 7.5 abortions per 1,000 women in the study, compared with 13.4 to 17 abortions per 1,000 women overall in the St. Louis region, Peipert calculated. That's lower than the national rate, too, which is almost 20 abortions per 1,000 women.
In fact, if the program were expanded, one abortion could be prevented for every 79 to 137 women given a free contraceptive choice, Peipert's team reported in the journal Obstetrics & Gynecology.
Image: Birth control pills, via Shutterstock