• Chad Holmes, Katherine Holmes, Jon Scarborough, Joel Hunt, James P d'Etienne, Amy F Ho, Naomi Alanis, Ryan Kirby, Chet D Schrader, and Hao Wang.
• Department of Emergency Medicine, Integrative Emergency Services, JPS Health Network, 1500 S. Main St., Fort Worth, TX 76104, USA. Electronic address: cholmes@ies.healthcare.
• Am J Emerg Med. 2023 Apr 1; 66: 118123118-123.

ObjectivePatient portal (PP) use has rapidly increased in recent years. However, the PP use status among houseless patients is largely unknown. We aim to determine 1) the PP use status among Emergency Department (ED) patients experiencing houselessness, and 2) whether PP use is linked to the increase in patient clinic visits.MethodsThis is a single-center retrospective observational study. From March 1, 2019, to February 28, 2021, houseless patients who presented at ED were included. Their PP use status, including passive PP use (log-on only PP) and effective PP use (use PP of functions) was compared between houseless and non-houseless patients. The number of clinic visits was also compared between these two groups. Lastly, a multivariate logistic regression was analyzed to determine the association between houseless status and PP use.ResultsWe included a total of 236,684 patients, 13% of whom (30,956) were houseless at time of their encounter. Fewer houseless patients had effective PP use in comparison to non-houseless patients (7.3% versus 11.6%, p < 0.001). In addition, a higher number of clinic visits were found among houseless patients who had effective PP use than those without (18 versus 3, p < 0.001). The adjusted odds ratio of houseless status associated with PP use was 0.48 (95% CI 0.46-0.49, p < 0.001).ConclusionsHouselessness is a potential risk factor preventing patient portal use. In addition, using patient portals could potentially increase clinic visits among the houseless patient population.Copyright © 2023 Elsevier Inc. All rights reserved.

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