• Brian H Nathanson, Thomas L Higgins, Mihaela Stefan, Tara Lagu, Peter K Lindenauer, and Jay S Steingrub.
• OptiStatim, LLC, Longmeadow, MA 01106, United States; Institute for Healthcare Delivery and Population Science, University of Massachusetts Medical School-Baystate, Springfield, MA, United States. Electronic address: brian.h.nathanson@att.net.
• J Crit Care. 2019 Feb 1; 49: 118-123.

PurposeTo assess how homelessness impacts mortality and length of stay (LOS) among select the intensive care unit (ICU) patients.MethodsWe used ICD-9 code V60.0 to identify homeless patients using the Premier Perspective Database from January 2010 to June 2011. We identified three subpopulations who received critical care services using ICD-9 and Medicare Severity Diagnosis Related Groups (MS-DRG) codes: patients with a diagnosis of sepsis who were treated with antibiotics by Day 2, patients with an alcohol or drug related MS-DRG, and patients with a diabetes related MS-DRG. We used multivariable logistic regression to predict mortality and multivariable generalized estimating equations to predict hospital and ICU LOS.Results781,540 hospitalizations met inclusion criteria; 2278 (0.3%) were homeless. We found homelessness had no significant adjusted association with mortality among sepsis patients, but was associated with substantially longer hospital LOS: (3.7 days longer; 95% CI (1.7, 5.7, p < .001). LOS did not differ in the Diabetes or Alcohol and Drug related DRG groups.ConclusionsCritically ill homeless patients with sepsis had longer hospital LOS but similar ICU LOS and mortality risk compared to non-homeless patients. Homelessness was not associated with increased LOS in the diabetes or alcohol and drug related groups.Copyright © 2018 Elsevier Inc. All rights reserved.

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