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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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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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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
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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