Incident Cancer Detection During Multiple Waves of COVID-19: The Tsunami After the Earthquake
Institute of Health Policy, Management, and Evaluation, and
Department of Otolaryngology–Head and Neck Surgery, University of Toronto, Toronto;
Search for other papers by Rui Fu in
Current site
Google Scholar
PubMed
Institute of Health Policy, Management, and Evaluation, and
Search for other papers by Rinku Sutradhar in
Current site
Google Scholar
PubMed
Search for other papers by Qing Li in
Current site
Google Scholar
PubMed
Ontario Institute for Cancer Research (OICR), Toronto;
Search for other papers by Timothy P. Hanna in
Current site
Google Scholar
PubMed
Ontario Health–Cancer Care Ontario, Toronto;
Search for other papers by Kelvin K.W. Chan in
Current site
Google Scholar
PubMed
Department of Otolaryngology–Head & Neck Surgery/Surgical Oncology, University of Toronto, Princess Margaret Cancer Centre, Toronto;
Search for other papers by Jonathan C. Irish in
Current site
Google Scholar
PubMed
Institute of Health Policy, Management, and Evaluation, and
Ontario Health–Cancer Care Ontario, Toronto;
Department of Surgery,
Search for other papers by Natalie Coburn in
Current site
Google Scholar
PubMed
Institute of Health Policy, Management, and Evaluation, and
Odette Cancer Centre–Sunnybrook Health Sciences Centre, Toronto;
Department of Surgery,
Search for other papers by Julie Hallet in
Current site
Google Scholar
PubMed
Institute of Health Policy, Management, and Evaluation, and
Department of Surgery,
Search for other papers by Anna Dare in
Current site
Google Scholar
PubMed
Institute of Health Policy, Management, and Evaluation, and
Department of Medicine, and
Search for other papers by Simron Singh in
Current site
Google Scholar
PubMed
Department of Medicine, and
Search for other papers by Ambica Parmar in
Current site
Google Scholar
PubMed
Department of Medicine, and
Search for other papers by Craig C. Earle in
Current site
Google Scholar
PubMed
Institute of Health Policy, Management, and Evaluation, and
Department of Medicine, and
Search for other papers by Lauren Lapointe-Shaw in
Current site
Google Scholar
PubMed
Institute of Health Policy, Management, and Evaluation, and
Department of Medicine, and
Search for other papers by Monika K. Krzyzanowska in
Current site
Google Scholar
PubMed
Institute of Health Policy, Management, and Evaluation, and
Department of Surgery,
Search for other papers by Antonio Finelli in
Current site
Google Scholar
PubMed
Search for other papers by Alexander V. Louie in
Current site
Google Scholar
PubMed
Institute of Health Policy, Management, and Evaluation, and
Department of Surgery,
Search for other papers by Nicole J. Look Hong in
Current site
Google Scholar
PubMed
Ontario Health–Cancer Care Ontario, Toronto;
Department of Otolaryngology–Head & Neck Surgery/Surgical Oncology, University of Toronto, Princess Margaret Cancer Centre, Toronto;
Search for other papers by Ian J. Witterick in
Current site
Google Scholar
PubMed
Search for other papers by Alyson Mahar in
Current site
Google Scholar
PubMed
Institute of Health Policy, Management, and Evaluation, and
Department of Surgery,
Division of General Surgery, St. Michael’s Hospital, Unity Health Toronto, Toronto;
Search for other papers by David Gomez in
Current site
Google Scholar
PubMed
Department of Anesthesiology and Pain Medicine, The Ottawa Hospital, Ottawa; and
Search for other papers by Daniel I. McIsaac in
Current site
Google Scholar
PubMed
Search for other papers by Danny Enepekides in
Current site
Google Scholar
PubMed
Department of Surgery, Women’s College Hospital, Toronto, Ontario, Canada.
Search for other papers by David R. Urbach in
Current site
Google Scholar
PubMed
Institute of Health Policy, Management, and Evaluation, and
Department of Otolaryngology–Head and Neck Surgery, University of Toronto, Toronto;
Search for other papers by Antoine Eskander in
Current site
Google Scholar
PubMed
No population-based study exists to demonstrate the full-spectrum impact of COVID-19 on hindering incident cancer detection in a large cancer system. Building upon our previous publication in JNCCN, we conducted an updated analysis using 12 months of new data accrued in the pandemic era (extending the study period from September 26, 2020, to October 2, 2021) to demonstrate how multiple COVID-19 waves affected the weekly cancer incidence volume in Ontario, Canada, and if we have fully cleared the backlog at the end of each wave.
Submitted August 29, 2022; accepted for publication September 15, 2022.
Disclosures: Dr. Eskander has disclosed receiving grant/research support from Merck and serving as a consultant for Bristol Myers Squibb. Dr. Hallet has disclosed receiving honoraria from Ipsen Biopharmaceuticals and Novartis Canada. The remaining authors have disclosed that they have not received any financial consideration from any person or organization to support the preparation, analysis, results, or discussion of this article.
Funding: This work was supported by a Sunnybrook Research Institute and Sunnybrook Foundation COVID-19 Response Grant and a Canadian Institutes of Health Research Operating Grant #179892.
Disclaimer: The funders had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
© 2019-2024 National Comprehensive Cancer Network