ArticleCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne2022
The risk of death or unplanned readmission after discharge from a COVID-19 hospitalization in Alberta and Ontario.
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Article in CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11citing papers in PubMed
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Who cites it
11 citing papers in PubMed.
- Healthcare resource utilization and cost burden of COVID-19 according to vaccination status in adults in Ontario, Canada, 2021-2023.PloS one · 2026Article
- Longer term post-hospital morbidity and mortality following admission with COVID-19: a systematic review and meta-analysis.ERJ open research · 2025Article
- Analysis of Clinical Criteria for Discharge Among Patients Hospitalized for COVID-19: Development and Validation of a Risk Prediction Model.Journal of general internal medicine · 2024Observational
- Association of physical symptoms with accelerometer-measured movement behaviors and functional capacity in individuals with Long COVID.Scientific reports · 2024Article
- Healthcare utilization 9 months pre- and post- COVID-19 hospitalization among patients discharged alive.PloS one · 2024Article
- Rationale and design of the multi organ inflammation with serial testing study: a comprehensive assessment of functional and structural abnormalities in patients with recovered COVID-19.Frontiers in medicine · 2024Article
- Patients Hospitalized With Coronavirus Disease 2019: A Diverse Population.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2023Article
- Outcomes Among Patients Hospitalized With Non-COVID-19 Conditions Before and During the COVID-19 Pandemic in Alberta and Ontario, Canada.JAMA network open · 2023Article
- Healthcare utilization and adverse outcomes stratified by sex, age and long-term care residency using the Alberta COVID-19 Analytics and Research Database (ACARD): a population-based descriptive study.BMC infectious diseases · 2023Article
- Healthcare Utilization in Patients with Chronic Obstructive Pulmonary Disease Discharged from Coronavirus 2019 Hospitalization.International journal of chronic obstructive pulmonary disease · 2023Article
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Authors and funding
16 authors.
Finlay A McAlisterDivision of General Internal Medicine, Faculty of Medicine and Dentistry (McAlister), University of Alberta; The Alberta Strategy for Patient-Oriented Research Support Unit (McAlister, Dong, Youngson), Edmonton, Alta.; ICES (Chu, Wang, Quinn, Udell, de Mestral, van Walraven, Lee); University of Toronto (Chu, de Mestral, Ross); Department of Medicine, Divisions of General Internal Medicine and Palliative Care (Quinn), Sinai Health System, University of Toronto; Li Ka Shing Knowledge Institute (Verma, Razak), St. Michael's Hospital, Unity Health Toronto; Department of Medicine (Verma, Razak), University of Toronto; Institute of Health Policy, Management and Evaluation (Verma, Razak), Dalla Lana School of Public Health, University of Toronto; University Health Network (Udell, Ross, Lee); Department of Medicine (Neurology) (Yu), University of Toronto, Sunnybrook Health Sciences Centre, Toronto, Ont.; Division of Physical Medicine and Rehabilitation (Ho), Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alta.; Department of Surgery (de Mestral), Unity Health Toronto; Peter Munk Cardiac Center (Ross, Lee), Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ont.; Department of Medicine and School of Epidemiology and Public Health (van Walraven), University of Ottawa, Ottawa Hospital Research Institute, Ottawa, Ont. Finlay.McAlister@ualberta.ca.
Yuan DongDivision of General Internal Medicine, Faculty of Medicine and Dentistry (McAlister), University of Alberta; The Alberta Strategy for Patient-Oriented Research Support Unit (McAlister, Dong, Youngson), Edmonton, Alta.; ICES (Chu, Wang, Quinn, Udell, de Mestral, van Walraven, Lee); University of Toronto (Chu, de Mestral, Ross); Department of Medicine, Divisions of General Internal Medicine and Palliative Care (Quinn), Sinai Health System, University of Toronto; Li Ka Shing Knowledge Institute (Verma, Razak), St. Michael's Hospital, Unity Health Toronto; Department of Medicine (Verma, Razak), University of Toronto; Institute of Health Policy, Management and Evaluation (Verma, Razak), Dalla Lana School of Public Health, University of Toronto; University Health Network (Udell, Ross, Lee); Department of Medicine (Neurology) (Yu), University of Toronto, Sunnybrook Health Sciences Centre, Toronto, Ont.; Division of Physical Medicine and Rehabilitation (Ho), Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alta.; Department of Surgery (de Mestral), Unity Health Toronto; Peter Munk Cardiac Center (Ross, Lee), Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ont.; Department of Medicine and School of Epidemiology and Public Health (van Walraven), University of Ottawa, Ottawa Hospital Research Institute, Ottawa, Ont.
Anna ChuDivision of General Internal Medicine, Faculty of Medicine and Dentistry (McAlister), University of Alberta; The Alberta Strategy for Patient-Oriented Research Support Unit (McAlister, Dong, Youngson), Edmonton, Alta.; ICES (Chu, Wang, Quinn, Udell, de Mestral, van Walraven, Lee); University of Toronto (Chu, de Mestral, Ross); Department of Medicine, Divisions of General Internal Medicine and Palliative Care (Quinn), Sinai Health System, University of Toronto; Li Ka Shing Knowledge Institute (Verma, Razak), St. Michael's Hospital, Unity Health Toronto; Department of Medicine (Verma, Razak), University of Toronto; Institute of Health Policy, Management and Evaluation (Verma, Razak), Dalla Lana School of Public Health, University of Toronto; University Health Network (Udell, Ross, Lee); Department of Medicine (Neurology) (Yu), University of Toronto, Sunnybrook Health Sciences Centre, Toronto, Ont.; Division of Physical Medicine and Rehabilitation (Ho), Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alta.; Department of Surgery (de Mestral), Unity Health Toronto; Peter Munk Cardiac Center (Ross, Lee), Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ont.; Department of Medicine and School of Epidemiology and Public Health (van Walraven), University of Ottawa, Ottawa Hospital Research Institute, Ottawa, Ont.
Xuesong WangDivision of General Internal Medicine, Faculty of Medicine and Dentistry (McAlister), University of Alberta; The Alberta Strategy for Patient-Oriented Research Support Unit (McAlister, Dong, Youngson), Edmonton, Alta.; ICES (Chu, Wang, Quinn, Udell, de Mestral, van Walraven, Lee); University of Toronto (Chu, de Mestral, Ross); Department of Medicine, Divisions of General Internal Medicine and Palliative Care (Quinn), Sinai Health System, University of Toronto; Li Ka Shing Knowledge Institute (Verma, Razak), St. Michael's Hospital, Unity Health Toronto; Department of Medicine (Verma, Razak), University of Toronto; Institute of Health Policy, Management and Evaluation (Verma, Razak), Dalla Lana School of Public Health, University of Toronto; University Health Network (Udell, Ross, Lee); Department of Medicine (Neurology) (Yu), University of Toronto, Sunnybrook Health Sciences Centre, Toronto, Ont.; Division of Physical Medicine and Rehabilitation (Ho), Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alta.; Department of Surgery (de Mestral), Unity Health Toronto; Peter Munk Cardiac Center (Ross, Lee), Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ont.; Department of Medicine and School of Epidemiology and Public Health (van Walraven), University of Ottawa, Ottawa Hospital Research Institute, Ottawa, Ont.
Erik YoungsonDivision of General Internal Medicine, Faculty of Medicine and Dentistry (McAlister), University of Alberta; The Alberta Strategy for Patient-Oriented Research Support Unit (McAlister, Dong, Youngson), Edmonton, Alta.; ICES (Chu, Wang, Quinn, Udell, de Mestral, van Walraven, Lee); University of Toronto (Chu, de Mestral, Ross); Department of Medicine, Divisions of General Internal Medicine and Palliative Care (Quinn), Sinai Health System, University of Toronto; Li Ka Shing Knowledge Institute (Verma, Razak), St. Michael's Hospital, Unity Health Toronto; Department of Medicine (Verma, Razak), University of Toronto; Institute of Health Policy, Management and Evaluation (Verma, Razak), Dalla Lana School of Public Health, University of Toronto; University Health Network (Udell, Ross, Lee); Department of Medicine (Neurology) (Yu), University of Toronto, Sunnybrook Health Sciences Centre, Toronto, Ont.; Division of Physical Medicine and Rehabilitation (Ho), Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alta.; Department of Surgery (de Mestral), Unity Health Toronto; Peter Munk Cardiac Center (Ross, Lee), Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ont.; Department of Medicine and School of Epidemiology and Public Health (van Walraven), University of Ottawa, Ottawa Hospital Research Institute, Ottawa, Ont.
Kieran L QuinnDivision of General Internal Medicine, Faculty of Medicine and Dentistry (McAlister), University of Alberta; The Alberta Strategy for Patient-Oriented Research Support Unit (McAlister, Dong, Youngson), Edmonton, Alta.; ICES (Chu, Wang, Quinn, Udell, de Mestral, van Walraven, Lee); University of Toronto (Chu, de Mestral, Ross); Department of Medicine, Divisions of General Internal Medicine and Palliative Care (Quinn), Sinai Health System, University of Toronto; Li Ka Shing Knowledge Institute (Verma, Razak), St. Michael's Hospital, Unity Health Toronto; Department of Medicine (Verma, Razak), University of Toronto; Institute of Health Policy, Management and Evaluation (Verma, Razak), Dalla Lana School of Public Health, University of Toronto; University Health Network (Udell, Ross, Lee); Department of Medicine (Neurology) (Yu), University of Toronto, Sunnybrook Health Sciences Centre, Toronto, Ont.; Division of Physical Medicine and Rehabilitation (Ho), Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alta.; Department of Surgery (de Mestral), Unity Health Toronto; Peter Munk Cardiac Center (Ross, Lee), Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ont.; Department of Medicine and School of Epidemiology and Public Health (van Walraven), University of Ottawa, Ottawa Hospital Research Institute, Ottawa, Ont.
Amol VermaDivision of General Internal Medicine, Faculty of Medicine and Dentistry (McAlister), University of Alberta; The Alberta Strategy for Patient-Oriented Research Support Unit (McAlister, Dong, Youngson), Edmonton, Alta.; ICES (Chu, Wang, Quinn, Udell, de Mestral, van Walraven, Lee); University of Toronto (Chu, de Mestral, Ross); Department of Medicine, Divisions of General Internal Medicine and Palliative Care (Quinn), Sinai Health System, University of Toronto; Li Ka Shing Knowledge Institute (Verma, Razak), St. Michael's Hospital, Unity Health Toronto; Department of Medicine (Verma, Razak), University of Toronto; Institute of Health Policy, Management and Evaluation (Verma, Razak), Dalla Lana School of Public Health, University of Toronto; University Health Network (Udell, Ross, Lee); Department of Medicine (Neurology) (Yu), University of Toronto, Sunnybrook Health Sciences Centre, Toronto, Ont.; Division of Physical Medicine and Rehabilitation (Ho), Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alta.; Department of Surgery (de Mestral), Unity Health Toronto; Peter Munk Cardiac Center (Ross, Lee), Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ont.; Department of Medicine and School of Epidemiology and Public Health (van Walraven), University of Ottawa, Ottawa Hospital Research Institute, Ottawa, Ont.
Jacob A UdellDivision of General Internal Medicine, Faculty of Medicine and Dentistry (McAlister), University of Alberta; The Alberta Strategy for Patient-Oriented Research Support Unit (McAlister, Dong, Youngson), Edmonton, Alta.; ICES (Chu, Wang, Quinn, Udell, de Mestral, van Walraven, Lee); University of Toronto (Chu, de Mestral, Ross); Department of Medicine, Divisions of General Internal Medicine and Palliative Care (Quinn), Sinai Health System, University of Toronto; Li Ka Shing Knowledge Institute (Verma, Razak), St. Michael's Hospital, Unity Health Toronto; Department of Medicine (Verma, Razak), University of Toronto; Institute of Health Policy, Management and Evaluation (Verma, Razak), Dalla Lana School of Public Health, University of Toronto; University Health Network (Udell, Ross, Lee); Department of Medicine (Neurology) (Yu), University of Toronto, Sunnybrook Health Sciences Centre, Toronto, Ont.; Division of Physical Medicine and Rehabilitation (Ho), Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alta.; Department of Surgery (de Mestral), Unity Health Toronto; Peter Munk Cardiac Center (Ross, Lee), Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ont.; Department of Medicine and School of Epidemiology and Public Health (van Walraven), University of Ottawa, Ottawa Hospital Research Institute, Ottawa, Ont.
Amy Y X YuDivision of General Internal Medicine, Faculty of Medicine and Dentistry (McAlister), University of Alberta; The Alberta Strategy for Patient-Oriented Research Support Unit (McAlister, Dong, Youngson), Edmonton, Alta.; ICES (Chu, Wang, Quinn, Udell, de Mestral, van Walraven, Lee); University of Toronto (Chu, de Mestral, Ross); Department of Medicine, Divisions of General Internal Medicine and Palliative Care (Quinn), Sinai Health System, University of Toronto; Li Ka Shing Knowledge Institute (Verma, Razak), St. Michael's Hospital, Unity Health Toronto; Department of Medicine (Verma, Razak), University of Toronto; Institute of Health Policy, Management and Evaluation (Verma, Razak), Dalla Lana School of Public Health, University of Toronto; University Health Network (Udell, Ross, Lee); Department of Medicine (Neurology) (Yu), University of Toronto, Sunnybrook Health Sciences Centre, Toronto, Ont.; Division of Physical Medicine and Rehabilitation (Ho), Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alta.; Department of Surgery (de Mestral), Unity Health Toronto; Peter Munk Cardiac Center (Ross, Lee), Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ont.; Department of Medicine and School of Epidemiology and Public Health (van Walraven), University of Ottawa, Ottawa Hospital Research Institute, Ottawa, Ont.
Fahad RazakDivision of General Internal Medicine, Faculty of Medicine and Dentistry (McAlister), University of Alberta; The Alberta Strategy for Patient-Oriented Research Support Unit (McAlister, Dong, Youngson), Edmonton, Alta.; ICES (Chu, Wang, Quinn, Udell, de Mestral, van Walraven, Lee); University of Toronto (Chu, de Mestral, Ross); Department of Medicine, Divisions of General Internal Medicine and Palliative Care (Quinn), Sinai Health System, University of Toronto; Li Ka Shing Knowledge Institute (Verma, Razak), St. Michael's Hospital, Unity Health Toronto; Department of Medicine (Verma, Razak), University of Toronto; Institute of Health Policy, Management and Evaluation (Verma, Razak), Dalla Lana School of Public Health, University of Toronto; University Health Network (Udell, Ross, Lee); Department of Medicine (Neurology) (Yu), University of Toronto, Sunnybrook Health Sciences Centre, Toronto, Ont.; Division of Physical Medicine and Rehabilitation (Ho), Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alta.; Department of Surgery (de Mestral), Unity Health Toronto; Peter Munk Cardiac Center (Ross, Lee), Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ont.; Department of Medicine and School of Epidemiology and Public Health (van Walraven), University of Ottawa, Ottawa Hospital Research Institute, Ottawa, Ont.
Chester HoDivision of General Internal Medicine, Faculty of Medicine and Dentistry (McAlister), University of Alberta; The Alberta Strategy for Patient-Oriented Research Support Unit (McAlister, Dong, Youngson), Edmonton, Alta.; ICES (Chu, Wang, Quinn, Udell, de Mestral, van Walraven, Lee); University of Toronto (Chu, de Mestral, Ross); Department of Medicine, Divisions of General Internal Medicine and Palliative Care (Quinn), Sinai Health System, University of Toronto; Li Ka Shing Knowledge Institute (Verma, Razak), St. Michael's Hospital, Unity Health Toronto; Department of Medicine (Verma, Razak), University of Toronto; Institute of Health Policy, Management and Evaluation (Verma, Razak), Dalla Lana School of Public Health, University of Toronto; University Health Network (Udell, Ross, Lee); Department of Medicine (Neurology) (Yu), University of Toronto, Sunnybrook Health Sciences Centre, Toronto, Ont.; Division of Physical Medicine and Rehabilitation (Ho), Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alta.; Department of Surgery (de Mestral), Unity Health Toronto; Peter Munk Cardiac Center (Ross, Lee), Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ont.; Department of Medicine and School of Epidemiology and Public Health (van Walraven), University of Ottawa, Ottawa Hospital Research Institute, Ottawa, Ont.
Charles de MestralDivision of General Internal Medicine, Faculty of Medicine and Dentistry (McAlister), University of Alberta; The Alberta Strategy for Patient-Oriented Research Support Unit (McAlister, Dong, Youngson), Edmonton, Alta.; ICES (Chu, Wang, Quinn, Udell, de Mestral, van Walraven, Lee); University of Toronto (Chu, de Mestral, Ross); Department of Medicine, Divisions of General Internal Medicine and Palliative Care (Quinn), Sinai Health System, University of Toronto; Li Ka Shing Knowledge Institute (Verma, Razak), St. Michael's Hospital, Unity Health Toronto; Department of Medicine (Verma, Razak), University of Toronto; Institute of Health Policy, Management and Evaluation (Verma, Razak), Dalla Lana School of Public Health, University of Toronto; University Health Network (Udell, Ross, Lee); Department of Medicine (Neurology) (Yu), University of Toronto, Sunnybrook Health Sciences Centre, Toronto, Ont.; Division of Physical Medicine and Rehabilitation (Ho), Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alta.; Department of Surgery (de Mestral), Unity Health Toronto; Peter Munk Cardiac Center (Ross, Lee), Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ont.; Department of Medicine and School of Epidemiology and Public Health (van Walraven), University of Ottawa, Ottawa Hospital Research Institute, Ottawa, Ont.
Heather J RossDivision of General Internal Medicine, Faculty of Medicine and Dentistry (McAlister), University of Alberta; The Alberta Strategy for Patient-Oriented Research Support Unit (McAlister, Dong, Youngson), Edmonton, Alta.; ICES (Chu, Wang, Quinn, Udell, de Mestral, van Walraven, Lee); University of Toronto (Chu, de Mestral, Ross); Department of Medicine, Divisions of General Internal Medicine and Palliative Care (Quinn), Sinai Health System, University of Toronto; Li Ka Shing Knowledge Institute (Verma, Razak), St. Michael's Hospital, Unity Health Toronto; Department of Medicine (Verma, Razak), University of Toronto; Institute of Health Policy, Management and Evaluation (Verma, Razak), Dalla Lana School of Public Health, University of Toronto; University Health Network (Udell, Ross, Lee); Department of Medicine (Neurology) (Yu), University of Toronto, Sunnybrook Health Sciences Centre, Toronto, Ont.; Division of Physical Medicine and Rehabilitation (Ho), Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alta.; Department of Surgery (de Mestral), Unity Health Toronto; Peter Munk Cardiac Center (Ross, Lee), Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ont.; Department of Medicine and School of Epidemiology and Public Health (van Walraven), University of Ottawa, Ottawa Hospital Research Institute, Ottawa, Ont.
Carl van WalravenDivision of General Internal Medicine, Faculty of Medicine and Dentistry (McAlister), University of Alberta; The Alberta Strategy for Patient-Oriented Research Support Unit (McAlister, Dong, Youngson), Edmonton, Alta.; ICES (Chu, Wang, Quinn, Udell, de Mestral, van Walraven, Lee); University of Toronto (Chu, de Mestral, Ross); Department of Medicine, Divisions of General Internal Medicine and Palliative Care (Quinn), Sinai Health System, University of Toronto; Li Ka Shing Knowledge Institute (Verma, Razak), St. Michael's Hospital, Unity Health Toronto; Department of Medicine (Verma, Razak), University of Toronto; Institute of Health Policy, Management and Evaluation (Verma, Razak), Dalla Lana School of Public Health, University of Toronto; University Health Network (Udell, Ross, Lee); Department of Medicine (Neurology) (Yu), University of Toronto, Sunnybrook Health Sciences Centre, Toronto, Ont.; Division of Physical Medicine and Rehabilitation (Ho), Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alta.; Department of Surgery (de Mestral), Unity Health Toronto; Peter Munk Cardiac Center (Ross, Lee), Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ont.; Department of Medicine and School of Epidemiology and Public Health (van Walraven), University of Ottawa, Ottawa Hospital Research Institute, Ottawa, Ont.
Douglas S LeeDivision of General Internal Medicine, Faculty of Medicine and Dentistry (McAlister), University of Alberta; The Alberta Strategy for Patient-Oriented Research Support Unit (McAlister, Dong, Youngson), Edmonton, Alta.; ICES (Chu, Wang, Quinn, Udell, de Mestral, van Walraven, Lee); University of Toronto (Chu, de Mestral, Ross); Department of Medicine, Divisions of General Internal Medicine and Palliative Care (Quinn), Sinai Health System, University of Toronto; Li Ka Shing Knowledge Institute (Verma, Razak), St. Michael's Hospital, Unity Health Toronto; Department of Medicine (Verma, Razak), University of Toronto; Institute of Health Policy, Management and Evaluation (Verma, Razak), Dalla Lana School of Public Health, University of Toronto; University Health Network (Udell, Ross, Lee); Department of Medicine (Neurology) (Yu), University of Toronto, Sunnybrook Health Sciences Centre, Toronto, Ont.; Division of Physical Medicine and Rehabilitation (Ho), Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alta.; Department of Surgery (de Mestral), Unity Health Toronto; Peter Munk Cardiac Center (Ross, Lee), Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ont.; Department of Medicine and School of Epidemiology and Public Health (van Walraven), University of Ottawa, Ottawa Hospital Research Institute, Ottawa, Ont.
CORONA Collaboration
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe frequency of readmissions after COVID-19 hospitalizations is uncertain, as is whether current readmission prediction equations are useful for discharge risk stratification of COVID-19 survivors or for comparing among hospitals. We sought to determine the frequency and predictors of death or unplanned readmission after a COVID-19 hospital discharge.
methodsWe conducted a retrospective cohort study of all adults (≥ 18 yr) who were discharged alive from hospital after a nonpsychiatric, nonobstetric, acute care admission for COVID-19 between Jan. 1, 2020, and Sept. 30, 2021, in Alberta and Ontario.
resultsOf 843 737 individuals who tested positive for SARS-CoV-2 by reverse transcription polymerase chain reaction during the study period, 46 412 (5.5%) were adults admitted to hospital within 14 days of their positive test. Of these, 8496 died in hospital and 34 846 were discharged alive (30 336 discharged after an index admission of ≤ 30 d and 4510 discharged after an admission > 30 d). One in 9 discharged patients died or were readmitted within 30 days after discharge (3173 [10.5%] of those with stay ≤ 30 d and 579 [12.8%] of those with stay > 30 d). The LACE score (length of stay, acuity, Charlson Comorbidity Index and number of emergency visits in previous 6 months) for predicting urgent readmission or death within 30 days had a c-statistic of 0.60 in Alberta and 0.61 in Ontario; inclusion of sex, discharge locale, deprivation index and teaching hospital status in the model improved the c-statistic to 0.73.
interpretationDeath or readmission after discharge from a COVID-19 hospitalization is common and had a similar frequency in Alberta and Ontario. Risk stratification and interinstitutional comparisons of outcomes after hospital admission for COVID-19 should include sex, discharge locale and socioeconomic measures, in addition to the LACE variables.
Indexed as
COVID-19Patient ReadmissionAdultAlbertaComorbidityEmergency Service, HospitalHospitalizationHumansLength of StayOntarioPatient DischargeRetrospective StudiesRisk FactorsSARS-CoV-2
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