title: Acceptability of randomization to levonorgestrel versus copper intrauterine device among women requesting IUD insertion for contraception.
abstract: OBJECTIVE
  Assess feasibility of randomizing women to intrauterine device (IUD) type.
  
  
  METHODS
  Women enrolling in a 2-month study who desired an IUD for contraception were randomized 1:1 to receive a levonorgestrel-releasing 52-mg IUD (LNG-IUD) or copper T380A IUD (Cu-IUD), understanding they could switch IUD type at the end of the study.
  
  
  RESULTS
  Randomization to IUD type was acceptable to 54/55 (98%) women who screened. All 32 enrolled participants completed follow-up. Two women exchanged their IUD (Cu-IUD to LNG-IUD), and two requested removal (one LNG-IUD, one Cu-IUD). Overall, 88% continued their assigned IUD.
  
  
  CONCLUSIONS
  Randomization to IUD type is feasible, and few women change their IUD.
authors: Department of Obstetrics, Gynecology, and Reproductive Sciences and Center for Family Planning Research, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA 15213. Electronic address: achisx@upmc.edu.
authors: Sharon L
authors: SL
authors: Achilles
authors: Department of Obstetrics, Gynecology, and Reproductive Sciences and Center for Family Planning Research, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA 15213.
authors: Beatrice A
authors: BA
authors: Chen
authors: Department of Obstetrics, Gynecology, and Reproductive Sciences and Center for Family Planning Research, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA 15213.
authors: Jessica K
authors: JK
authors: Lee
authors: Department of Obstetrics, Gynecology, and Reproductive Sciences and Center for Family Planning Research, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA 15213.
authors: Aileen M
authors: AM
authors: Gariepy
authors: Department of Obstetrics, Gynecology, and Reproductive Sciences and Center for Family Planning Research, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA 15213; Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA 15213.
authors: Mitchell D
authors: MD
authors: Creinin
mesh_terms: D000293:Adolescent; D000328:Adult; D003267:Contraception / Q000295:instrumentation*; D003271:Contraceptive Agents, Female / Q000008:administration & dosage*; D005240:Feasibility Studies; D005260:Female; D064368:Healthy Volunteers; D006801:Humans; D007435:Intrauterine Devices, Copper; D007436:Intrauterine Devices, Medicated; D016912:Levonorgestrel / Q000008:administration & dosage*; D055815:Young Adult
chemical_list: D003271:Contraceptive Agents, Female; D016912:Levonorgestrel
keywords: Contraception; IUD randomization; Intrauterine device; Randomization