One-year continuation of the etonogestrel contraceptive implant initiated with oral emergency contraception.

Objective: To report the one-year continuation rate of etonogestrel (ENG) implant users who initiated the method with same-day oral levonorgestrel emergency contraception (EC). Methods: EC clients age 18-35y at four Utah family planning clinics between February 2021 and April 2023 initiated an ENG implant and completed follow-up surveys through 12-months. Results: At 12 months, we accounted for 132 (82.5%) of 160 participants: 79 (59.8%) still used their implant and 53 (40.2%) discontinued. A higher proportion of privately-insured participants discontinued (42% vs. 24%, p=0.04). Conclusions: Nearly 60% of participants who chose guideline-supported ENG implant placement at an EC clinical visit continued use at one year.

Background: Clinicaltrials.gov NCT04678817; registered 12/16/20.