Long - acting forms of contraception 20 times more effective than daily pill . A third type of birth control , the hormone injections sold under the brand name Depo-Provera , had a low failure rate comparable to those of IUDs and implants , the study found . Failure rates for pills were especially dramatic among teenagers and young women . Birth control pills are the method of choice for 28 % of U.S. women .
Long - acting forms of contraception 20 times more effective than daily pill . Failure rates for pills were especially dramatic among teenagers and young women . Birth control pills are the method of choice for 28 % of U.S. women .