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Characteristics, treatment and delirium incidence of older adults hospitalized with COVID-19: a multicentre retrospective cohort study

Eric Kai-Chung Wong, Jennifer Watt, Hanyan Zou, Arthana Chandraraj, Alissa Wenyue Zhang, Jahnel Brookes, Ashley Verduyn, Anna Berall, Richard Norman, Katrina Lynn Piggott, Terumi Izukawa, Sharon E. Straus and Barbara Liu
July 26, 2022 10 (3) E692-E701; DOI: https://doi.org/10.9778/cmajo.20210176
Eric Kai-Chung Wong
Li Ka Shing Knowledge Institute (Wong, Watt, Chandraraj, Straus), and Division of Geriatric Medicine (Wong, Watt, Straus), Department of Medicine, St. Michael’s Hospital, Unity Health Toronto; Division of Geriatric Medicine (Wong, Watt, Norman, Piggott, Izukawa, Straus, Liu), Department of Medicine, University of Toronto; Division of Geriatric Medicine (Zou, Norman), Department of Medicine, Sinai Health and University Health Network; Division of Geriatric Medicine (Zhang, Piggott), Department of Medicine, Sunnybrook Health Sciences Centre; Kunin-Lunenfeld Centre for Applied Research & Evaluation (Brookes, Berall, Izukawa), Rotman Research Institute, Baycrest Health Sciences Centre; Providence Healthcare and Houses of Providence (Verduyn), Unity Health Toronto; Division of Geriatric Medicine (Izukawa), Department of Medicine, Baycrest Health Sciences Centre, Toronto, Ont.
MD
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Jennifer Watt
Li Ka Shing Knowledge Institute (Wong, Watt, Chandraraj, Straus), and Division of Geriatric Medicine (Wong, Watt, Straus), Department of Medicine, St. Michael’s Hospital, Unity Health Toronto; Division of Geriatric Medicine (Wong, Watt, Norman, Piggott, Izukawa, Straus, Liu), Department of Medicine, University of Toronto; Division of Geriatric Medicine (Zou, Norman), Department of Medicine, Sinai Health and University Health Network; Division of Geriatric Medicine (Zhang, Piggott), Department of Medicine, Sunnybrook Health Sciences Centre; Kunin-Lunenfeld Centre for Applied Research & Evaluation (Brookes, Berall, Izukawa), Rotman Research Institute, Baycrest Health Sciences Centre; Providence Healthcare and Houses of Providence (Verduyn), Unity Health Toronto; Division of Geriatric Medicine (Izukawa), Department of Medicine, Baycrest Health Sciences Centre, Toronto, Ont.
MD PhD
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Hanyan Zou
Li Ka Shing Knowledge Institute (Wong, Watt, Chandraraj, Straus), and Division of Geriatric Medicine (Wong, Watt, Straus), Department of Medicine, St. Michael’s Hospital, Unity Health Toronto; Division of Geriatric Medicine (Wong, Watt, Norman, Piggott, Izukawa, Straus, Liu), Department of Medicine, University of Toronto; Division of Geriatric Medicine (Zou, Norman), Department of Medicine, Sinai Health and University Health Network; Division of Geriatric Medicine (Zhang, Piggott), Department of Medicine, Sunnybrook Health Sciences Centre; Kunin-Lunenfeld Centre for Applied Research & Evaluation (Brookes, Berall, Izukawa), Rotman Research Institute, Baycrest Health Sciences Centre; Providence Healthcare and Houses of Providence (Verduyn), Unity Health Toronto; Division of Geriatric Medicine (Izukawa), Department of Medicine, Baycrest Health Sciences Centre, Toronto, Ont.
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Arthana Chandraraj
Li Ka Shing Knowledge Institute (Wong, Watt, Chandraraj, Straus), and Division of Geriatric Medicine (Wong, Watt, Straus), Department of Medicine, St. Michael’s Hospital, Unity Health Toronto; Division of Geriatric Medicine (Wong, Watt, Norman, Piggott, Izukawa, Straus, Liu), Department of Medicine, University of Toronto; Division of Geriatric Medicine (Zou, Norman), Department of Medicine, Sinai Health and University Health Network; Division of Geriatric Medicine (Zhang, Piggott), Department of Medicine, Sunnybrook Health Sciences Centre; Kunin-Lunenfeld Centre for Applied Research & Evaluation (Brookes, Berall, Izukawa), Rotman Research Institute, Baycrest Health Sciences Centre; Providence Healthcare and Houses of Providence (Verduyn), Unity Health Toronto; Division of Geriatric Medicine (Izukawa), Department of Medicine, Baycrest Health Sciences Centre, Toronto, Ont.
BSc
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Alissa Wenyue Zhang
Li Ka Shing Knowledge Institute (Wong, Watt, Chandraraj, Straus), and Division of Geriatric Medicine (Wong, Watt, Straus), Department of Medicine, St. Michael’s Hospital, Unity Health Toronto; Division of Geriatric Medicine (Wong, Watt, Norman, Piggott, Izukawa, Straus, Liu), Department of Medicine, University of Toronto; Division of Geriatric Medicine (Zou, Norman), Department of Medicine, Sinai Health and University Health Network; Division of Geriatric Medicine (Zhang, Piggott), Department of Medicine, Sunnybrook Health Sciences Centre; Kunin-Lunenfeld Centre for Applied Research & Evaluation (Brookes, Berall, Izukawa), Rotman Research Institute, Baycrest Health Sciences Centre; Providence Healthcare and Houses of Providence (Verduyn), Unity Health Toronto; Division of Geriatric Medicine (Izukawa), Department of Medicine, Baycrest Health Sciences Centre, Toronto, Ont.
BSc
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Jahnel Brookes
Li Ka Shing Knowledge Institute (Wong, Watt, Chandraraj, Straus), and Division of Geriatric Medicine (Wong, Watt, Straus), Department of Medicine, St. Michael’s Hospital, Unity Health Toronto; Division of Geriatric Medicine (Wong, Watt, Norman, Piggott, Izukawa, Straus, Liu), Department of Medicine, University of Toronto; Division of Geriatric Medicine (Zou, Norman), Department of Medicine, Sinai Health and University Health Network; Division of Geriatric Medicine (Zhang, Piggott), Department of Medicine, Sunnybrook Health Sciences Centre; Kunin-Lunenfeld Centre for Applied Research & Evaluation (Brookes, Berall, Izukawa), Rotman Research Institute, Baycrest Health Sciences Centre; Providence Healthcare and Houses of Providence (Verduyn), Unity Health Toronto; Division of Geriatric Medicine (Izukawa), Department of Medicine, Baycrest Health Sciences Centre, Toronto, Ont.
HBSc
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Ashley Verduyn
Li Ka Shing Knowledge Institute (Wong, Watt, Chandraraj, Straus), and Division of Geriatric Medicine (Wong, Watt, Straus), Department of Medicine, St. Michael’s Hospital, Unity Health Toronto; Division of Geriatric Medicine (Wong, Watt, Norman, Piggott, Izukawa, Straus, Liu), Department of Medicine, University of Toronto; Division of Geriatric Medicine (Zou, Norman), Department of Medicine, Sinai Health and University Health Network; Division of Geriatric Medicine (Zhang, Piggott), Department of Medicine, Sunnybrook Health Sciences Centre; Kunin-Lunenfeld Centre for Applied Research & Evaluation (Brookes, Berall, Izukawa), Rotman Research Institute, Baycrest Health Sciences Centre; Providence Healthcare and Houses of Providence (Verduyn), Unity Health Toronto; Division of Geriatric Medicine (Izukawa), Department of Medicine, Baycrest Health Sciences Centre, Toronto, Ont.
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Anna Berall
Li Ka Shing Knowledge Institute (Wong, Watt, Chandraraj, Straus), and Division of Geriatric Medicine (Wong, Watt, Straus), Department of Medicine, St. Michael’s Hospital, Unity Health Toronto; Division of Geriatric Medicine (Wong, Watt, Norman, Piggott, Izukawa, Straus, Liu), Department of Medicine, University of Toronto; Division of Geriatric Medicine (Zou, Norman), Department of Medicine, Sinai Health and University Health Network; Division of Geriatric Medicine (Zhang, Piggott), Department of Medicine, Sunnybrook Health Sciences Centre; Kunin-Lunenfeld Centre for Applied Research & Evaluation (Brookes, Berall, Izukawa), Rotman Research Institute, Baycrest Health Sciences Centre; Providence Healthcare and Houses of Providence (Verduyn), Unity Health Toronto; Division of Geriatric Medicine (Izukawa), Department of Medicine, Baycrest Health Sciences Centre, Toronto, Ont.
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Richard Norman
Li Ka Shing Knowledge Institute (Wong, Watt, Chandraraj, Straus), and Division of Geriatric Medicine (Wong, Watt, Straus), Department of Medicine, St. Michael’s Hospital, Unity Health Toronto; Division of Geriatric Medicine (Wong, Watt, Norman, Piggott, Izukawa, Straus, Liu), Department of Medicine, University of Toronto; Division of Geriatric Medicine (Zou, Norman), Department of Medicine, Sinai Health and University Health Network; Division of Geriatric Medicine (Zhang, Piggott), Department of Medicine, Sunnybrook Health Sciences Centre; Kunin-Lunenfeld Centre for Applied Research & Evaluation (Brookes, Berall, Izukawa), Rotman Research Institute, Baycrest Health Sciences Centre; Providence Healthcare and Houses of Providence (Verduyn), Unity Health Toronto; Division of Geriatric Medicine (Izukawa), Department of Medicine, Baycrest Health Sciences Centre, Toronto, Ont.
MD MSc(QIPS)
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Katrina Lynn Piggott
Li Ka Shing Knowledge Institute (Wong, Watt, Chandraraj, Straus), and Division of Geriatric Medicine (Wong, Watt, Straus), Department of Medicine, St. Michael’s Hospital, Unity Health Toronto; Division of Geriatric Medicine (Wong, Watt, Norman, Piggott, Izukawa, Straus, Liu), Department of Medicine, University of Toronto; Division of Geriatric Medicine (Zou, Norman), Department of Medicine, Sinai Health and University Health Network; Division of Geriatric Medicine (Zhang, Piggott), Department of Medicine, Sunnybrook Health Sciences Centre; Kunin-Lunenfeld Centre for Applied Research & Evaluation (Brookes, Berall, Izukawa), Rotman Research Institute, Baycrest Health Sciences Centre; Providence Healthcare and Houses of Providence (Verduyn), Unity Health Toronto; Division of Geriatric Medicine (Izukawa), Department of Medicine, Baycrest Health Sciences Centre, Toronto, Ont.
MD MSc(QIPS)
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Terumi Izukawa
Li Ka Shing Knowledge Institute (Wong, Watt, Chandraraj, Straus), and Division of Geriatric Medicine (Wong, Watt, Straus), Department of Medicine, St. Michael’s Hospital, Unity Health Toronto; Division of Geriatric Medicine (Wong, Watt, Norman, Piggott, Izukawa, Straus, Liu), Department of Medicine, University of Toronto; Division of Geriatric Medicine (Zou, Norman), Department of Medicine, Sinai Health and University Health Network; Division of Geriatric Medicine (Zhang, Piggott), Department of Medicine, Sunnybrook Health Sciences Centre; Kunin-Lunenfeld Centre for Applied Research & Evaluation (Brookes, Berall, Izukawa), Rotman Research Institute, Baycrest Health Sciences Centre; Providence Healthcare and Houses of Providence (Verduyn), Unity Health Toronto; Division of Geriatric Medicine (Izukawa), Department of Medicine, Baycrest Health Sciences Centre, Toronto, Ont.
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Sharon E. Straus
Li Ka Shing Knowledge Institute (Wong, Watt, Chandraraj, Straus), and Division of Geriatric Medicine (Wong, Watt, Straus), Department of Medicine, St. Michael’s Hospital, Unity Health Toronto; Division of Geriatric Medicine (Wong, Watt, Norman, Piggott, Izukawa, Straus, Liu), Department of Medicine, University of Toronto; Division of Geriatric Medicine (Zou, Norman), Department of Medicine, Sinai Health and University Health Network; Division of Geriatric Medicine (Zhang, Piggott), Department of Medicine, Sunnybrook Health Sciences Centre; Kunin-Lunenfeld Centre for Applied Research & Evaluation (Brookes, Berall, Izukawa), Rotman Research Institute, Baycrest Health Sciences Centre; Providence Healthcare and Houses of Providence (Verduyn), Unity Health Toronto; Division of Geriatric Medicine (Izukawa), Department of Medicine, Baycrest Health Sciences Centre, Toronto, Ont.
MD MSc
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Barbara Liu
Li Ka Shing Knowledge Institute (Wong, Watt, Chandraraj, Straus), and Division of Geriatric Medicine (Wong, Watt, Straus), Department of Medicine, St. Michael’s Hospital, Unity Health Toronto; Division of Geriatric Medicine (Wong, Watt, Norman, Piggott, Izukawa, Straus, Liu), Department of Medicine, University of Toronto; Division of Geriatric Medicine (Zou, Norman), Department of Medicine, Sinai Health and University Health Network; Division of Geriatric Medicine (Zhang, Piggott), Department of Medicine, Sunnybrook Health Sciences Centre; Kunin-Lunenfeld Centre for Applied Research & Evaluation (Brookes, Berall, Izukawa), Rotman Research Institute, Baycrest Health Sciences Centre; Providence Healthcare and Houses of Providence (Verduyn), Unity Health Toronto; Division of Geriatric Medicine (Izukawa), Department of Medicine, Baycrest Health Sciences Centre, Toronto, Ont.
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Article Information

vol. 10 no. 3 E692-E701
DOI 
https://doi.org/10.9778/cmajo.20210176
History 
  • Published online July 26, 2022.
Copyright & Usage 
© 2022 CMA Impact Inc. or its licensors This is an Open Access article distributed in accordance with the terms of the Creative Commons Attribution (CC BY-NC-ND 4.0) licence, which permits use, distribution and reproduction in any medium, provided that the original publication is properly cited, the use is noncommercial (i.e., research or educational use), and no modifications or adaptations are made. See: https://creativecommons.org/licenses/by-nc-nd/4.0/

Author Information

  1. Eric Kai-Chung Wong, MD,
  2. Jennifer Watt, MD PhD,
  3. Hanyan Zou, BSc,
  4. Arthana Chandraraj, BSc,
  5. Alissa Wenyue Zhang, BSc,
  6. Jahnel Brookes, HBSc,
  7. Ashley Verduyn, MD,
  8. Anna Berall, RN,
  9. Richard Norman, MD MSc(QIPS),
  10. Katrina Lynn Piggott, MD MSc(QIPS),
  11. Terumi Izukawa, MD,
  12. Sharon E. Straus, MD MSc,
  13. Barbara Liu, MD
  1. Li Ka Shing Knowledge Institute (Wong, Watt, Chandraraj, Straus), and Division of Geriatric Medicine (Wong, Watt, Straus), Department of Medicine, St. Michael’s Hospital, Unity Health Toronto; Division of Geriatric Medicine (Wong, Watt, Norman, Piggott, Izukawa, Straus, Liu), Department of Medicine, University of Toronto; Division of Geriatric Medicine (Zou, Norman), Department of Medicine, Sinai Health and University Health Network; Division of Geriatric Medicine (Zhang, Piggott), Department of Medicine, Sunnybrook Health Sciences Centre; Kunin-Lunenfeld Centre for Applied Research & Evaluation (Brookes, Berall, Izukawa), Rotman Research Institute, Baycrest Health Sciences Centre; Providence Healthcare and Houses of Providence (Verduyn), Unity Health Toronto; Division of Geriatric Medicine (Izukawa), Department of Medicine, Baycrest Health Sciences Centre, Toronto, Ont.
  1. Correspondence to: Barbara Liu, barbara.liu{at}sunnybrook.ca
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Characteristics, treatment and delirium incidence of older adults hospitalized with COVID-19: a multicentre retrospective cohort study
Eric Kai-Chung Wong, Jennifer Watt, Hanyan Zou, Arthana Chandraraj, Alissa Wenyue Zhang, Jahnel Brookes, Ashley Verduyn, Anna Berall, Richard Norman, Katrina Lynn Piggott, Terumi Izukawa, Sharon E. Straus, Barbara Liu
Jul 2022, 10 (3) E692-E701; DOI: 10.9778/cmajo.20210176

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Characteristics, treatment and delirium incidence of older adults hospitalized with COVID-19: a multicentre retrospective cohort study
Eric Kai-Chung Wong, Jennifer Watt, Hanyan Zou, Arthana Chandraraj, Alissa Wenyue Zhang, Jahnel Brookes, Ashley Verduyn, Anna Berall, Richard Norman, Katrina Lynn Piggott, Terumi Izukawa, Sharon E. Straus, Barbara Liu
Jul 2022, 10 (3) E692-E701; DOI: 10.9778/cmajo.20210176
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