Effectiveness of Contraceptive Decision Aids in Adolescents and Young Adults: A Systematic Review

Background Contraceptive decision aids may support adolescents and young adults (AYA) in choosing contraceptive methods that fit their unique reproductive health needs. Objective To provide a systematic review of studies examining the effectiveness of contraceptive decision aids in AYA. Materials and Methods A systematic search was conducted of studies published between January 1, 2011, and March 31, 2021 using PubMed, Cochrane, and ClinicalTrials.gov. Studies were included if a contraceptive decision aid (ie, paper handout, mobile application, website, or video) was evaluated in AYA populations (age ≤30 years) in the United States. The primary outcome was decision aid effectiveness (ie, change in contraceptive knowledge, interest in contraception, contraceptive use, unintended pregnancies, and satisfaction with the decision aid). Results Seven randomized controlled trials and 3 pre−post studies, reporting on 3725 AYA (range, 11-30 years), met inclusion criteria. No studies were excluded due to risk of bias. The methodologies and results were heterogeneous, but most consistently demonstrated increased contraceptive knowledge. Conclusion Ten studies evaluated a range of contraceptive decision aid formats for AYA. Decision aids appear to be effective at increasing contraceptive knowledge temporarily, but their effect on other contraceptive outcomes is unclear. Future research should evaluate decision aids specifically in adolescents.