• Sabrina Piedimonte, Sue Li, Stephane Laframboise, Sarah E Ferguson, Marcus Q Bernardini, Genevieve Bouchard-Fortier, Liat Hogen, Paulina Cybulska, Michael J Worley, and Taymaa May.
• Division of Gynecologic Oncology, Department of Surgical Oncology, Princess Margaret Cancer Center, University of Toronto, Toronto, ON, Canada.
• Gynecol. Oncol. 2021 Jul 1; 162 (1): 12-17.

ObjectiveTo compare gynecologic oncology surgical treatment modifications and delays during the first wave of the COVID-19 pandemic between a publicly funded Canadian versus a privately funded American cancer center.MethodsThis is a retrospective cohort study of all planned gynecologic oncology surgeries at University Health Network (UHN) in Toronto, Canada and Brigham and Women's Hospital (BWH) in Boston, USA, between March 22,020 and July 302,020. Surgical treatment delays and modifications at both centers were compared to standard recommendations. Multivariable logistic regression was performed to adjust for confounders.ResultsA total of 450 surgical gynecologic oncology patients were included; 215 at UHN and 235 at BWH. There was a significant difference in median time from decision-to-treat to treatment (23 vs 15 days, p < 0.01) between UHN and BWH and a significant difference in treatment delays (32.56% vs 18.29%; p < 0.01) and modifications (8.37% vs 0.85%; p < 0.01), respectively. On multivariable analysis adjusting for age, race, treatment site and surgical priority status, treatment at UHN was an independent predictor of treatment modification (OR = 9.43,95% CI 1.81-49.05, p < 0.01). Treatment delays were higher at UHN (OR = 1.96,95% CI 1.14-3.36 p = 0.03) and for uterine disease (OR = 2.43, 95% CI 1.11-5.33, p = 0.03).ConclusionDuring the first wave of COVID-19 pandemic, gynecologic oncology patients treated at a publicly funded Canadian center were 9.43 times more likely to have a surgical treatment modification and 1.96 times more likely to have a surgical delay compared to an equal volume privately funded center in the United States.Copyright © 2021 Elsevier Inc. All rights reserved.

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