Objective: To describe the prevalence of rapid repeat pregnancy (RRP), defined as repeat pregnancy within 18 months of delivery, in a large health system and to determine the impact of contraceptive method on RRP.
Study design: Retrospective cohort.
Results: The prevalence of RRP among patients who delivered in August 2014 (n=804) was 27.2%. After controlling for age and sociodemographic characteristics, women experiencing RRP were less likely to have used long-acting reversible contraception (LARC) [adjusted odds ratio (aOR) 0.45, 95% confidence interval (CI) 0.24-0.85, p=.014; RRP in 19% of implant and 18% of IUD users)] and more likely to have been prescribed a progestin-only pill (aOR 5.106, 95% CI 2.157-12.083, p<.001; RRP in 53% of users) compared to women choosing all other reversible contraceptive methods.
Conclusions: Postpartum LARC decreases the odds of RRP, while a prescription for progestin-only pills is not protective.
Keywords: Long-acting reversible contraception; Postpartum LARC; Postpartum contraception; Rapid repeat pregnancy; Unintended pregnancy.
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