Leveraging a health information exchange to examine the accuracy of self-report emergency department utilization data among hospitalized injury survivors

Lauren K Whiteside, Marie C Vrablik, Joan Russo, Eileen M Bulger, Deepika Nehra, Kathleen Moloney, Douglas F Zatzick, Lauren K Whiteside, Marie C Vrablik, Joan Russo, Eileen M Bulger, Deepika Nehra, Kathleen Moloney, Douglas F Zatzick

Abstract

Background: Accurate acute care medical utilization history is an important outcome for clinicians and investigators concerned with improving trauma center care. The objective of this study was to examine the accuracy of self-report emergency department (ED) utilization compared with utilization obtained from the Emergency Department Information Exchange (EDIE) in admitted trauma surgery patients with comorbid mental health and substance use problems.

Methods: This is a retrospective cohort study of 169 injured patients admitted to the University of Washington's Harborview Level I Trauma Center. Patients had high levels of post-traumatic stress disorder and depressive symptoms, suicidal ideation and alcohol comorbidity. The investigation used EDIE, a novel health technology tool that collects information at the time a patient checks into any ED in Washington and other US states. Patterns of EDIE-documented visits were described, and the accuracy of injured patients' self-report visits was compared with EDIE-recorded visits during the course of the 12 months prior to the index trauma center admission.

Results: Overall, 45% of the sample (n=76) inaccurately recalled their ED visits during the past year, with 36 participants (21%) reporting less ED visits than EDIE indicated and 40 (24%) reporting more ED visits than EDIE indicated. Patients with histories of alcohol use problems and major psychiatric illness were more likely to either under-report or over-report ED health service use.

Discussion: Nearly half of all patients were unable to accurately recall ED visits in the previous 12 months compared with EDIE, with almost one-quarter of patients demonstrating high levels of disagreement. The improved accuracy and ease of use when compared with self-report make EDIE an important tool for both clinical and pragmatic trial longitudinal outcome assessments. Orchestrated investigative and policy efforts could further examine the benefits of introducing EDIE and other information exchanges into routine acute care clinical workflows.

Level of evidence: II/III.

Trial registration number: ClinicalTrials.gov NCT02274688.

Keywords: patient reported outcome measures; post-traumatic; stress disorders; substance-related disorders; wounds and injuries.

Conflict of interest statement

Competing interests: None declared.

© Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

Figures

Figure 1
Figure 1
Bland-Altman plot of differences between participants’ self-report and EDIE-documented number of emergency department (ED) visits versus the mean number of ED visits. EDIE, Emergency Department Information Exchange.

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