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. 2022 Dec;129(12):1412-1420.
doi: 10.1016/j.ophtha.2022.06.038. Epub 2022 Jul 2.

Association of the Affordable Care Act with Eye-Related Emergency Department Utilization in the United States

Tahreem A Mir  1 , Sumarth Mehta  1 , Karen Qiang  1 , Ron A Adelman  1 , Lucian V Del Priore  1 , Jessica Chow  2
Affiliations

Association of the Affordable Care Act with Eye-Related Emergency Department Utilization in the United States

Tahreem A Mir et al. Ophthalmology. 2022 Dec.

Abstract

Purpose: To investigate the association of the Affordable Care Act (ACA) with nationwide eye-related emergency department (ED) use.

Design: Retrospective, cross-sectional study.

Participants: All patients who presented to the ED with an eye-related primary diagnosis were eligible for inclusion.

Methods: Nationally representative data from the US Nationwide Emergency Department Sample were used to analyze eye-related ED visits before (2010-2013) and after (2014-2017) the ACA was mandated. All ED visits were categorized as emergent or nonemergent or could not be determined.

Main outcome measures: The primary outcome was to compare the nationwide and regional incidence of eye-related ED visits per 100 000 US population before (2010-2013) and after (2014-2017) the ACA was mandated. Secondary outcome measures included change in payor status, proportion of urgent versus nonurgent visits, proportion of visits at teaching versus nonteaching hospitals, associated charges, and discharge disposition.

Results: A total of 16 808 343 eye-related ED visits occurred in the United States during the study period from 2010 to 2017. Of these, 8 088 203 ED visits occurred before the ACA was mandated (2010-2013), and 8 720 766 ED visits occurred after the ACA was mandated (2014-2017). After the ACA was mandated in 2014, there was an initial decline in incidence of eye-related ED visits from 652.4 per 100 000 population in 2013 to 593.0 per 100 000 population in 2014, followed by a rapid increase in incidence to 658.5 per 100 000 population in 2015, with a further increase to 746.6 per 100 000 population in 2016. The percentage of uninsured patients decreased from 19.0% to 14.3%. The increase in ED use was greatest for individuals in the lowest income quartile (895.1 per 100 000 population in 2013 to 964.0 per 100 000 in 2017). Overall, 44.8% of ED visits were due to nonemergent eye conditions.

Conclusions: Although the ACA increased insurance coverage for Americans, theoretically increasing access to outpatient ophthalmic care, this did not decrease ED reliance for management of ophthalmic conditions. Additional measures beyond expanding insurance coverage may be necessary to provide high-quality, efficient, and equitable outpatient ophthalmic care to all Americans.

Keywords: Affordable Care Act; Healthcare Disparities; Medicaid.

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