• Lauren Kelley, Roberta Capp, Juan F Carmona, Gail D'Onofrio, Hao Mei, Darcey Cobbs-Lomax, and Peter Ellis.
• Project Access-New Haven, New Haven, Connecticut.
• J Emerg Med. 2020 Jun 1; 58 (6): 967-977.

BackgroundSome Medicaid enrollees frequently utilize the emergency department (ED) due to barriers accessing health care services in other settings.ObjectivesTo determine whether an ED-initiated Patient Navigation program (ED-PN) designed to improve health care access for Medicaid-insured frequent ED users could decrease ED visits, hospitalizations, and costs.MethodsWe conducted a prospective, randomized controlled trial comparing ED-PN with usual care (UC) among 100 Medicaid-enrolled frequent ED users (defined as 4-18 ED visits in the prior year), assessing ED utilization during the 12 months pre- and post-enrollment. Secondary outcomes included hospitalizations, outpatient utilization, hospital costs, and Medicaid costs. We also compared characteristics between ED-PN patients with and without reduced ED utilization.ResultsOf 214 eligible patients approached, 100 (47%) consented to participate. Forty-nine were randomized to ED-PN and 51 to UC. Sociodemographic characteristics and prior utilization were similar between groups. ED-PN participants had a significant reduction in ED visits and hospitalizations during the 12-month evaluation period compared with UC, averaging 1.4 fewer ED visits per patient (p = 0.01) and 1.0 fewer hospitalizations per patient (p = 0.001). Both groups increased outpatient utilization. ED-PN patients showed a trend toward reduced per-patient hospital costs (-$10,201, p = 0.10); Medicaid costs were unchanged (-$5,765, p = 0.26). Patients who demonstrated a reduction in ED usage were older (mean age 42 vs. 33 years, p = 0.03) and had lower health literacy (78% low health literacy vs. 40%, p = 0.02).ConclusionAn ED-PN program targeting Medicaid-insured high ED utilizers demonstrated significant reductions in ED visits and hospitalizations in the 12 months after enrollment.Copyright © 2020 Elsevier Inc. All rights reserved.

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