• Adam Schickedanz, Adam Sharp, Yi R Hu, Nirav R Shah, John L Adams, Damon Francis, and Artair Rogers.
• Department of Pediatrics, David Geffen School of Medicine at UCLA, 10960 Wilshire Blvd., Suite 960, Los Angeles, CA, 90024, USA. Aschickedanz@mednet.ucla.edu.
• J Gen Intern Med. 2019 Nov 1; 34 (11): 2382-2389.

BackgroundPrograms addressing social determinants of health for high-utilizing patients are gaining interest among health systems as an avenue to promote health and decrease utilization.ObjectiveTo evaluate impacts of a social needs screening and navigation program for adult predicted high utilizers on total medical visit utilization.DesignA prospective, quasi-experimental study using an intent-to-treat propensity-weighted difference-in-differences approach. Stratified analyses assessed intervention effects among three low-socioeconomic status sub-samples: patients in low-income areas, in low-education areas, and with Medicaid insurance.ParticipantsPredicted high utilizers-patients predicted to be in the highest 1% for total utilization in a large integrated health system.InterventionA telephonic social needs screening and navigation program.Main MeasuresPrimary difference-in-difference analyses compared total visit count utilization, including outpatient, emergency department (ED), and inpatient utilization, between the intervention and control groups at both in-network and out-of-network facilities. Prevalence of social needs among sample patients and their connection rates to social needs resources are also described.Key ResultsThe study included 34,225 patients (7107 intervention, 27,118 control). Most (53%) patients screened reported social needs, but only a minority (10%) of those with a need were able to connect with resources to address these needs. Primary analysis found total utilization visits decreased 2.2% (95% CI - 4.5%, 0.1%; p = 0.058) in the intervention group. Stratified analyses showed decreases in total utilization for all low-socioeconomic status subgroups receiving the intervention compared with controls: - 7.0% (95% CI - 11.9%, - 1.9%; p = 0.008) in the low-income area group, - 11.5% (- 17.6%, 5.0%; p < 0.001) in the low-education area group, and - 12.1% (- 18.1%, - 5.6%; p < 0.001) in the Medicaid group.ConclusionsSocial needs navigation programs for high-utilizing patients may have modest effects on utilization for the population overall. However, significant decreases in utilization were found among low-socioeconomic status patients more likely to experience social needs.

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