Re-Admission of COVID-19 Patients Hospitalized with Omicron Variant—A Retrospective Cohort Study

Irit Ayalon-Dangur, Adi Turjeman, Bar Basharim, Noa Bigman-Peer, Einat Magid, Hefziba Green, Tzippy Shochat, Alon Grossman, Jihad Bishara, Noa Eliakim-Raz*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


In accordance with previous publications, re-admission rates following hospitalization of patients with COVID-19 is 10%. The aim of the current study was to describe the rates and risk factors of hospital re-admissions two months following discharge from hospitalization during the fifth wave due to the dominant Omicron variant. A retrospective cohort study was performed in Rabin Medical Center, Israel, from November 2021 to February 2022. The primary outcome was re-admissions with any diagnosis; the secondary outcome was mortality within two months of discharge. Overall, 660 patients were hospitalized with a diagnosis of COVID-19. Of the 528 patients discharged from a primary hospitalization, 150 (28%) were re-admitted. A total of 164 patients (25%) died throughout the follow-up period. A multi-variable analysis determined that elevated creatinine was associated with a higher risk of re-admissions. Rates of re-admissions after discharge during the Omicron wave were considerably higher compared to previous waves. A discharge plan for surveillance and treatment following hospitalization is of great importance in the management of pandemics.

Original languageEnglish
Article number5202
JournalJournal of Clinical Medicine
Issue number17
StatePublished - Sep 2022


  • COVID-19
  • Omicron variant
  • SARS-CoV-2
  • re-admissions


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