‡Based on a September 2017 web-based survey of US women aged 18-45 years (N=300), where participants were asked about their attitudes about birth control that contains hormones. Respondents were required to be currently using birth control or have plans to use birth control in the next year. Repeat respondents within the previous 6 months were not permitted.
§Diedrich JT, Madden T, Zhao Q, Peipert JF. Long-term utilization and continuation of intrauterine devices. Am J Obstet Gynecol. 2015 Dec;213(6):822.e1-6. doi: 10.1016/j.ajog.2015.08.077. Epub 2015 Sep 25. PubMed PMID: 26409157