Associations between contraceptive availability and rate ofsubsequent legal abortions in Colombia: A historical cohortanalysis.

Abstract

To describe factors associated with subsequent abortions in Colombia and evaluate whether high-efficacy contraceptive availability (IUD) post-index abortion was associated with higher efficacy contraceptive initiation and fewer subsequent abortions within 2 years. The study population comprised patients aged 15-44 years who underwent index abortion in 2017 at four clinics in Bogotá, Colombia. Using charts, we conducted a retrospective cohort study with 2-year follow-up (2017-2019) after the index abortion for outcomes of contraceptive initiation and subsequent abortion. We evaluated associations between demographic or clinical characteristics and outcomes using Pearson chi-square and multivariate logistic regression. Of 9175 patients with index abortion, 3409 (37.2%) initiated an intrauterine device (IUD) and 467 (5.1%) had a subsequent abortion within the study period (2017-2019). IUD availability (adjusted odds ratio [aOR], 1.64; 95% confidence interval [CI], 1.39-1.93) and insurance use (aOR, 5.03; 95% CI, 4.37-5.78) were associated with high-efficacy contraceptive initiation; medication abortion was inversely associated (aOR, 0.24; 95% CI, 0.22-0.27). Initiation of no (aOR, 4.94; 95% CI, 3.59-6.80) or moderate-efficacy (injection: aOR, 4.21 [95% CI, 3.14-5.62]; oral contraceptive pill: aOR, 4.60 [95% CI, 3.21-6.59]) methods were associated with subsequent abortion. Subsequent abortion is inversely associated with initiated postabortion contraceptive efficacy, which is modifiable on a systems level by improving access to effective postabortion contraception.