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Association between new-onset anosmia and positive SARS-CoV-2 tests among people accessing outpatient testing in Toronto, Ontario: a retrospective cross-sectional study

Braden O’Neill, Sumeet Kalia, Peter Gill, Susan Hum, Carla Moran-Venegas, Rebecca Stoller, Michelle Greiver, Payal Agarwal, Abirami Kirubarajan, Samuel DeKoven, David Eisen, Andrew Pinto and Sheila Dunn
December 07, 2021 9 (4) E1134-E1140; DOI: https://doi.org/10.9778/cmajo.20210085
Braden O’Neill
MAP Centre for Urban Health Solutions (O’Neill, Pinto), Li Ka Shing Knowledge Institute; Department of Family and Community Medicine (O’Neill, Pinto), St. Michael’s Hospital, Unity Health; Department of Family and Community Medicine (O’Neill, Kalia, Greiver, Agarwal, Eisen, Pinto, Dunn), Temerty Faculty of Medicine, University of Toronto; SickKids Research Institute (Gill), Child Health Evaluative Sciences, Peter Gilgan Centre for Research and Learning; Department of Family and Community Medicine (Hum, Agarwal, Dunn), Women’s College Hospital; North York General Hospital (Moran-Venegas); Department of Family and Community Medicine (Stoller, Greiver, Eisen), North York General Hospital; Postgraduate Medical Education (Kirubarajan, DeKoven), Temerty Faculty of Medicine, University of Toronto, Toronto, Ont.
MD DPhil
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Sumeet Kalia
MAP Centre for Urban Health Solutions (O’Neill, Pinto), Li Ka Shing Knowledge Institute; Department of Family and Community Medicine (O’Neill, Pinto), St. Michael’s Hospital, Unity Health; Department of Family and Community Medicine (O’Neill, Kalia, Greiver, Agarwal, Eisen, Pinto, Dunn), Temerty Faculty of Medicine, University of Toronto; SickKids Research Institute (Gill), Child Health Evaluative Sciences, Peter Gilgan Centre for Research and Learning; Department of Family and Community Medicine (Hum, Agarwal, Dunn), Women’s College Hospital; North York General Hospital (Moran-Venegas); Department of Family and Community Medicine (Stoller, Greiver, Eisen), North York General Hospital; Postgraduate Medical Education (Kirubarajan, DeKoven), Temerty Faculty of Medicine, University of Toronto, Toronto, Ont.
MSc
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Peter Gill
MAP Centre for Urban Health Solutions (O’Neill, Pinto), Li Ka Shing Knowledge Institute; Department of Family and Community Medicine (O’Neill, Pinto), St. Michael’s Hospital, Unity Health; Department of Family and Community Medicine (O’Neill, Kalia, Greiver, Agarwal, Eisen, Pinto, Dunn), Temerty Faculty of Medicine, University of Toronto; SickKids Research Institute (Gill), Child Health Evaluative Sciences, Peter Gilgan Centre for Research and Learning; Department of Family and Community Medicine (Hum, Agarwal, Dunn), Women’s College Hospital; North York General Hospital (Moran-Venegas); Department of Family and Community Medicine (Stoller, Greiver, Eisen), North York General Hospital; Postgraduate Medical Education (Kirubarajan, DeKoven), Temerty Faculty of Medicine, University of Toronto, Toronto, Ont.
MD DPhil
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Susan Hum
MAP Centre for Urban Health Solutions (O’Neill, Pinto), Li Ka Shing Knowledge Institute; Department of Family and Community Medicine (O’Neill, Pinto), St. Michael’s Hospital, Unity Health; Department of Family and Community Medicine (O’Neill, Kalia, Greiver, Agarwal, Eisen, Pinto, Dunn), Temerty Faculty of Medicine, University of Toronto; SickKids Research Institute (Gill), Child Health Evaluative Sciences, Peter Gilgan Centre for Research and Learning; Department of Family and Community Medicine (Hum, Agarwal, Dunn), Women’s College Hospital; North York General Hospital (Moran-Venegas); Department of Family and Community Medicine (Stoller, Greiver, Eisen), North York General Hospital; Postgraduate Medical Education (Kirubarajan, DeKoven), Temerty Faculty of Medicine, University of Toronto, Toronto, Ont.
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Carla Moran-Venegas
MAP Centre for Urban Health Solutions (O’Neill, Pinto), Li Ka Shing Knowledge Institute; Department of Family and Community Medicine (O’Neill, Pinto), St. Michael’s Hospital, Unity Health; Department of Family and Community Medicine (O’Neill, Kalia, Greiver, Agarwal, Eisen, Pinto, Dunn), Temerty Faculty of Medicine, University of Toronto; SickKids Research Institute (Gill), Child Health Evaluative Sciences, Peter Gilgan Centre for Research and Learning; Department of Family and Community Medicine (Hum, Agarwal, Dunn), Women’s College Hospital; North York General Hospital (Moran-Venegas); Department of Family and Community Medicine (Stoller, Greiver, Eisen), North York General Hospital; Postgraduate Medical Education (Kirubarajan, DeKoven), Temerty Faculty of Medicine, University of Toronto, Toronto, Ont.
MSc
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Rebecca Stoller
MAP Centre for Urban Health Solutions (O’Neill, Pinto), Li Ka Shing Knowledge Institute; Department of Family and Community Medicine (O’Neill, Pinto), St. Michael’s Hospital, Unity Health; Department of Family and Community Medicine (O’Neill, Kalia, Greiver, Agarwal, Eisen, Pinto, Dunn), Temerty Faculty of Medicine, University of Toronto; SickKids Research Institute (Gill), Child Health Evaluative Sciences, Peter Gilgan Centre for Research and Learning; Department of Family and Community Medicine (Hum, Agarwal, Dunn), Women’s College Hospital; North York General Hospital (Moran-Venegas); Department of Family and Community Medicine (Stoller, Greiver, Eisen), North York General Hospital; Postgraduate Medical Education (Kirubarajan, DeKoven), Temerty Faculty of Medicine, University of Toronto, Toronto, Ont.
MD
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Michelle Greiver
MAP Centre for Urban Health Solutions (O’Neill, Pinto), Li Ka Shing Knowledge Institute; Department of Family and Community Medicine (O’Neill, Pinto), St. Michael’s Hospital, Unity Health; Department of Family and Community Medicine (O’Neill, Kalia, Greiver, Agarwal, Eisen, Pinto, Dunn), Temerty Faculty of Medicine, University of Toronto; SickKids Research Institute (Gill), Child Health Evaluative Sciences, Peter Gilgan Centre for Research and Learning; Department of Family and Community Medicine (Hum, Agarwal, Dunn), Women’s College Hospital; North York General Hospital (Moran-Venegas); Department of Family and Community Medicine (Stoller, Greiver, Eisen), North York General Hospital; Postgraduate Medical Education (Kirubarajan, DeKoven), Temerty Faculty of Medicine, University of Toronto, Toronto, Ont.
MD MSc
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Payal Agarwal
MAP Centre for Urban Health Solutions (O’Neill, Pinto), Li Ka Shing Knowledge Institute; Department of Family and Community Medicine (O’Neill, Pinto), St. Michael’s Hospital, Unity Health; Department of Family and Community Medicine (O’Neill, Kalia, Greiver, Agarwal, Eisen, Pinto, Dunn), Temerty Faculty of Medicine, University of Toronto; SickKids Research Institute (Gill), Child Health Evaluative Sciences, Peter Gilgan Centre for Research and Learning; Department of Family and Community Medicine (Hum, Agarwal, Dunn), Women’s College Hospital; North York General Hospital (Moran-Venegas); Department of Family and Community Medicine (Stoller, Greiver, Eisen), North York General Hospital; Postgraduate Medical Education (Kirubarajan, DeKoven), Temerty Faculty of Medicine, University of Toronto, Toronto, Ont.
MD
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Abirami Kirubarajan
MAP Centre for Urban Health Solutions (O’Neill, Pinto), Li Ka Shing Knowledge Institute; Department of Family and Community Medicine (O’Neill, Pinto), St. Michael’s Hospital, Unity Health; Department of Family and Community Medicine (O’Neill, Kalia, Greiver, Agarwal, Eisen, Pinto, Dunn), Temerty Faculty of Medicine, University of Toronto; SickKids Research Institute (Gill), Child Health Evaluative Sciences, Peter Gilgan Centre for Research and Learning; Department of Family and Community Medicine (Hum, Agarwal, Dunn), Women’s College Hospital; North York General Hospital (Moran-Venegas); Department of Family and Community Medicine (Stoller, Greiver, Eisen), North York General Hospital; Postgraduate Medical Education (Kirubarajan, DeKoven), Temerty Faculty of Medicine, University of Toronto, Toronto, Ont.
MD MSc
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Samuel DeKoven
MAP Centre for Urban Health Solutions (O’Neill, Pinto), Li Ka Shing Knowledge Institute; Department of Family and Community Medicine (O’Neill, Pinto), St. Michael’s Hospital, Unity Health; Department of Family and Community Medicine (O’Neill, Kalia, Greiver, Agarwal, Eisen, Pinto, Dunn), Temerty Faculty of Medicine, University of Toronto; SickKids Research Institute (Gill), Child Health Evaluative Sciences, Peter Gilgan Centre for Research and Learning; Department of Family and Community Medicine (Hum, Agarwal, Dunn), Women’s College Hospital; North York General Hospital (Moran-Venegas); Department of Family and Community Medicine (Stoller, Greiver, Eisen), North York General Hospital; Postgraduate Medical Education (Kirubarajan, DeKoven), Temerty Faculty of Medicine, University of Toronto, Toronto, Ont.
MD
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David Eisen
MAP Centre for Urban Health Solutions (O’Neill, Pinto), Li Ka Shing Knowledge Institute; Department of Family and Community Medicine (O’Neill, Pinto), St. Michael’s Hospital, Unity Health; Department of Family and Community Medicine (O’Neill, Kalia, Greiver, Agarwal, Eisen, Pinto, Dunn), Temerty Faculty of Medicine, University of Toronto; SickKids Research Institute (Gill), Child Health Evaluative Sciences, Peter Gilgan Centre for Research and Learning; Department of Family and Community Medicine (Hum, Agarwal, Dunn), Women’s College Hospital; North York General Hospital (Moran-Venegas); Department of Family and Community Medicine (Stoller, Greiver, Eisen), North York General Hospital; Postgraduate Medical Education (Kirubarajan, DeKoven), Temerty Faculty of Medicine, University of Toronto, Toronto, Ont.
MD
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Andrew Pinto
MAP Centre for Urban Health Solutions (O’Neill, Pinto), Li Ka Shing Knowledge Institute; Department of Family and Community Medicine (O’Neill, Pinto), St. Michael’s Hospital, Unity Health; Department of Family and Community Medicine (O’Neill, Kalia, Greiver, Agarwal, Eisen, Pinto, Dunn), Temerty Faculty of Medicine, University of Toronto; SickKids Research Institute (Gill), Child Health Evaluative Sciences, Peter Gilgan Centre for Research and Learning; Department of Family and Community Medicine (Hum, Agarwal, Dunn), Women’s College Hospital; North York General Hospital (Moran-Venegas); Department of Family and Community Medicine (Stoller, Greiver, Eisen), North York General Hospital; Postgraduate Medical Education (Kirubarajan, DeKoven), Temerty Faculty of Medicine, University of Toronto, Toronto, Ont.
MD MSc
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Sheila Dunn
MAP Centre for Urban Health Solutions (O’Neill, Pinto), Li Ka Shing Knowledge Institute; Department of Family and Community Medicine (O’Neill, Pinto), St. Michael’s Hospital, Unity Health; Department of Family and Community Medicine (O’Neill, Kalia, Greiver, Agarwal, Eisen, Pinto, Dunn), Temerty Faculty of Medicine, University of Toronto; SickKids Research Institute (Gill), Child Health Evaluative Sciences, Peter Gilgan Centre for Research and Learning; Department of Family and Community Medicine (Hum, Agarwal, Dunn), Women’s College Hospital; North York General Hospital (Moran-Venegas); Department of Family and Community Medicine (Stoller, Greiver, Eisen), North York General Hospital; Postgraduate Medical Education (Kirubarajan, DeKoven), Temerty Faculty of Medicine, University of Toronto, Toronto, Ont.
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Article Information

vol. 9 no. 4 E1134-E1140
DOI 
https://doi.org/10.9778/cmajo.20210085
PubMed 
34876415
History 
  • Published online December 7, 2021.
Copyright & Usage 
© 2021 CMA Joule 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. Braden O’Neill, MD DPhil,
  2. Sumeet Kalia, MSc,
  3. Peter Gill, MD DPhil,
  4. Susan Hum, MSc,
  5. Carla Moran-Venegas, MSc,
  6. Rebecca Stoller, MD,
  7. Michelle Greiver, MD MSc,
  8. Payal Agarwal, MD,
  9. Abirami Kirubarajan, MD MSc,
  10. Samuel DeKoven, MD,
  11. David Eisen, MD,
  12. Andrew Pinto, MD MSc,
  13. Sheila Dunn, MD MSc
  1. MAP Centre for Urban Health Solutions (O’Neill, Pinto), Li Ka Shing Knowledge Institute; Department of Family and Community Medicine (O’Neill, Pinto), St. Michael’s Hospital, Unity Health; Department of Family and Community Medicine (O’Neill, Kalia, Greiver, Agarwal, Eisen, Pinto, Dunn), Temerty Faculty of Medicine, University of Toronto; SickKids Research Institute (Gill), Child Health Evaluative Sciences, Peter Gilgan Centre for Research and Learning; Department of Family and Community Medicine (Hum, Agarwal, Dunn), Women’s College Hospital; North York General Hospital (Moran-Venegas); Department of Family and Community Medicine (Stoller, Greiver, Eisen), North York General Hospital; Postgraduate Medical Education (Kirubarajan, DeKoven), Temerty Faculty of Medicine, University of Toronto, Toronto, Ont.
  1. Correspondence to: Braden O’Neill, braden.oneill{at}unityhealth.to
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Association between new-onset anosmia and positive SARS-CoV-2 tests among people accessing outpatient testing in Toronto, Ontario: a retrospective cross-sectional study
Braden O’Neill, Sumeet Kalia, Peter Gill, Susan Hum, Carla Moran-Venegas, Rebecca Stoller, Michelle Greiver, Payal Agarwal, Abirami Kirubarajan, Samuel DeKoven, David Eisen, Andrew Pinto, Sheila Dunn
Oct 2021, 9 (4) E1134-E1140; DOI: 10.9778/cmajo.20210085

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Association between new-onset anosmia and positive SARS-CoV-2 tests among people accessing outpatient testing in Toronto, Ontario: a retrospective cross-sectional study
Braden O’Neill, Sumeet Kalia, Peter Gill, Susan Hum, Carla Moran-Venegas, Rebecca Stoller, Michelle Greiver, Payal Agarwal, Abirami Kirubarajan, Samuel DeKoven, David Eisen, Andrew Pinto, Sheila Dunn
Oct 2021, 9 (4) E1134-E1140; DOI: 10.9778/cmajo.20210085
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