A recent study by the Washington University School of Medicine in St. Louis found that women using IUDs and other methods like under the skin implants or Depro-Provera injections were much less likely to have an accidental pregnancy than women using ordinary birth control pills, the trans-dermal patch, or the vaginal ring. (CT readers who are not up-to-the-minute on ladyissues may be interested to learn that the ring is a polymer, well, ring, which is inserted into the vagina, and then releases hormones over the course of three weeks. The birth control type is replaced after four weeks. Another version is used to treat the effects of menopause and has a different schedule.)
The women using the pill etc. were, in fact twenty times as likely to have an accidental pregnancy as the other group. “We know that IUDs and implants have very low failure rates — less than 1 percent,” says Brooke Winner, MD, a fourth-year resident at Barnes-Jewish Hospital and the study’s lead author. “But although IUDs are very effective and have been proven safe in women and adolescents, they only are chosen by 5.5 percent of women in the United States who use contraception.” In this case the study provided the various types of birth control at no cost. Worth noting, when the cost barrier was removed, the percentage of women choosing long-acting contraceptives went way up, to 75%.
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