About Us: The Ontario COVID-19 Science Advisory Table is a group of scientific experts and health system leaders who evaluate and report on emerging evidence relevant to the COVID-19 pandemic, to inform Ontario's response. The Science Advisory Table's mandate is to provide summaries of relevant scientific evidence to public health and health care professionals, as well as the general public, by integrating information from existing scientific tables, Ontario's universities and agencies, and the best global evidence. The Science Advisory Table is hosted by Public Health Ontario (PHO). Aligned with PHO's mandate, the Science Advisory Table provides credible and independent scientific and technical advice to inform government and the broader public about COVID-19 and to help prepare for and respond to future public health emergencies.

About Us: The Ontario COVID-19 Science Advisory Table is a group of scientific experts and health system leaders who evaluate and report on emerging evidence relevant to the COVID-19 pandemic, to inform Ontario's response. The Science Advisory Table's mandate is to provide summaries of relevant scientific evidence to public health and health care professionals, as well as the general public, by integrating information from existing scientific tables, Ontario's universities and agencies, and the best global evidence. The Science Advisory Table is hosted by Public Health Ontario (PHO). Aligned with PHO's mandate, the Science Advisory Table provides credible and independent scientific and technical advice to inform government and the broader public about COVID-19 and to help prepare for and respond to future public health emergencies.

Background: Uptake of virtual care increased substantially during the first year of the COVID-19 pandemic. The aim of this study was to evaluate whether a shift from in-person to virtual visits by primary care physicians was associated with increased use of emergency departments among their enrolled patients. Methods:We conducted an observational study of monthly virtual visits and emergency department visits from Apr. 1, 2020, to Mar. 31, 2021, using administrative data from Ontario, Canada. We used multivariable regression