Lack of association between either outpatient or inpatient glycemic control and COVID-19 illness severity or mortality in patients with diabetes.

The overall mean glucose per patient-day (173.4±39.8 mg/dL) was near the upper end of the target 140–180 mg/dL range recommended for most ICU and non-ICU hospitalized patients, indicating that there may not be significant benefit to targeting any tighter glycemic control in these patients. 31–33 Others have reported an association with inpatient hyperglycemia and worse outcomes in COVID-19, but these studies have differences from ours, including limited analysis on patient subgroups with DM, varying definitions of h

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