The Centers for Disease Control and Prevention states that individuals with diabetes are at higher risk for severe illness with coronavirus disease 2019 (COVID-19) and poorer health outcomes (1). Research suggests the underlying reason for an increased risk of COVID-19 complications in individuals with diabetes may be poor glycemic control or hyperglycemia (2). Information on clinical outcomes for patients with type 1 diabetes who have confirmed cases of COVID-19 is limited. To our knowledge, this is the first U.S.-based multicenter study that addresses these questions in a population with type 1 diabetes.

This study aimed to examine patient characteristics and adverse outcomes among patients with type 1 diabetes with confirmed COVID-19. As a secondary objective, we investigated patient attributes and clinical outcomes in people with COVID-19–like symptoms for whom testing was unavailable or results were pending.

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