Association of Facility Type With Procedural-Related Morbidities and Adverse Events Among Patients Undergoing Induced Abortions.

IMPORTANCE: Multiple states have laws requiring abortion facilities to meet ambulatory surgery center (ASC) standards. There is limited evidence regarding abortion-related morbidities and adverse events following abortions performed at ASCs vs office-based settings.

OBJECTIVE: To compare abortion-related morbidities and adverse events at ASCs vs office-based settings.

DESIGN, SETTING, AND PARTICIPANTS: Retrospective cohort study of women with US private health insurance who underwent induced abortions in an ASC or office-based setting (January 1, 2011-December 31, 2014). Outcomes were abstracted from a large national private insurance claims database during the 6 weeks following the abortion (date of final follow-up, February 11, 2015).

EXPOSURES: Facility type for abortion (ASCs vs office-based settings, including facilities such as abortion clinics, nonspecialized clinics, and physician offices).

MAIN OUTCOMES AND MEASURES: The primary outcome was any abortion-related morbidity or adverse event (such as retained products of conception, abortion-related infection, hemorrhage, and uterine perforation) within 6 weeks after an abortion. Two secondary outcomes, both subsets of the primary outcome, were major abortion-related morbidities and adverse events (such as hemorrhages treated with a transfusion, missed ectopic pregnancies treated with surgery, and abortion-related infections that resulted in an overnight hospital admission) and abortion-related infections.

RESULTS: Among 49 287 women (mean age, 28 years [SD, 7.3]) who had 50 311 induced abortions, (23 891 [47%] first-trimester aspiration, 13 480 [27%] first-trimester medication, and 12 940 [26%] second trimester or later), 5660 abortions (11%) were performed in ASCs and 44 651 (89%) in office-based settings. Overall, 3.33% had an abortion-related morbidity or adverse event; 0.32% had a major abortion-related morbidity or adverse event; and 0.74% had an abortion-related infection. In adjusted analyses, there was no statistically significant difference between ASCs vs office-based settings, respectively, in the rates of abortion-related morbidities or adverse events (3.25% vs 3.33%, difference, -0.08%; [corrected] 95% CI, -0.58% to 0.43%; adjusted OR, 0.97; 95% CI, 0.81-1.17), major morbidities or adverse events (0.26% vs 0.33%; difference, -0.06%; 95% CI, -0.18% to 0.06%; adjusted OR, 0.78; 95% CI, 0.45-1.37), or infections (0.58% vs 0.77%; difference, -0.16%; 95% CI, -0.35% to 0.03%; adjusted OR, 0.75; 95% CI, 0.52-1.09).

CONCLUSIONS AND RELEVANCE: Among women with private health insurance who had an induced abortion, performance of the abortion in an ambulatory surgical center compared with an office-based setting was not associated with a significant difference in abortion-related morbidities and adverse events. These findings, in addition to individual patient and individual facility factors, may inform decisions about the type of facility in which induced abortions are performed.