• Vanessa E Zannella, Hae Y Jung, Michael Fralick, Lauren Lapointe-Shaw, Jessica J Liu, Adina Weinerman, Janice Kwan, Terence Tang, Shail Rawal, Thomas E MacMillan, Anthony D Bai, Sudeep Gill, Jiamin Shi, Chaim M Bell, Fahad Razak, and Amol A Verma.
• Department of Medicine, University of Toronto, Toronto, Ontario, Canada.
• J Hosp Med. 2022 Jan 1; 17 (1): 3-10.

BackgroundAdmitting hospitalized patients to off-service wards ("bedspacing") is common and may affect quality of care and patient outcomes.ObjectiveTo compare in-hospital mortality, 30-day readmission to general internal medicine (GIM), and hospital length-of-stay among GIM patients admitted to GIM wards or bedspaced to off-service wards.Design, Participants, And MeasuresRetrospective cohort study including all emergency department admissions to GIM between 2015 and 2017 at six hospitals in Ontario, Canada. We compared patients admitted to GIM wards with those who were bedspaced, using multivariable regression models and propensity score matching to control for patient and situational factors.Key ResultsAmong 40,440 GIM admissions, 10,745 (26.6%) were bedspaced to non-GIM wards and 29,695 (73.4%) were assigned to GIM wards. After multivariable adjustment, bedspacing was associated with no significant difference in mortality (adjusted hazard ratio 0.95, 95% confidence interval [CI]: 0.86-1.05, p = .304), slightly shorter median hospital length-of-stay (-0.10 days, 95% CI:-0.20 to -0.001, p = .047) and lower 30-day readmission to GIM (adjusted OR 0.89, 95% CI: 0.83-0.95, p = .001). Results were consistent when examining each hospital individually and outcomes did not significantly differ between medical or surgical off-service wards. Sensitivity analyses focused on the highest risk patients did not exclude the possibility of harm associated with bedspacing, although adverse outcomes were not significantly greater.ConclusionsOverall, bedspacing was associated with no significant difference in mortality, slightly shorter hospital length-of-stay, and fewer 30-day readmissions to GIM, although potential harms in high-risk patients remain uncertain. Given that hospital capacity issues are likely to persist, future research should aim to understand how bedspacing can be achieved safely at all hospitals, perhaps by strengthening the selection of low-risk patients.© 2022 Society of Hospital Medicine.

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