Newly diagnosed diabetes vs. pre-existing diabetes upon admission for COVID-19: Associated factors, short-term outcomes, and long-term glycemic phenotypes

• Main Authors: Colling, C. (Author), Cromer, S.J (Author), Leary, M. (Author), Putman, M.S (Author), Schatoff, D. (Author), Selen, D.J (Author), Stamou, M.I (Author), Wexler, D.J (Author)
• Format: Article
• Language: English
• Published: Elsevier Inc. 2022
• Subjects: adult; age; aged; antidiabetic agent; Article; Blood Glucose; Caucasian; clinical outcome; complication; controlled study; coronavirus disease 2019; COVID-19; diabetes mellitus; Diabetes Mellitus; dipeptidyl peptidase IV inhibitor; female; follow up; glucagon like peptide 1 receptor agonist; glucose; glucose blood level; hospital admission; human; Humans; hyperglycemia; Hyperglycemia; impaired glucose tolerance; insulin; insulin treatment; intensive care unit; length of stay; major clinical study; male; medicaid; medicare; metformin; Newly diagnosed diabetes; phenotype; Phenotype; race difference; Retrospective Studies; retrospective study; risk factor; semaglutide; Stress hyperglycemia; sulfonylurea
• Online Access: View Fulltext in Publisher
• ISBN: 10568727 (ISSN)
• DOI: 10.1016/j.jdiacomp.2022.108145

Aims: High rates of newly diagnosed diabetes mellitus (NDDM) have been reported in association with coronavirus disease-2019 (COVID-19). Factors associated with NDDM and long-term glycemic outcomes are not known. Methods: Retrospective review of individuals admitted with COVID-19 and diabetes mellitus (DM; based on labs, diagnoses, outpatient insulin use, or severe inpatient hyperglycemia) between March and September 2020, with follow-up through July 2021. Results: Of 1902 individuals admitted with COVID-19, 594 (31.2%) had DM; 77 (13.0%) of these had NDDM. Compared to pre-existing DM, NDDM was more common in younger patients and less common in those of non-Hispanic White race/ethnicity. Glycemic parameters were lower and inflammatory markers higher in patients with NDDM. In adjusted models, NDDM was associated with lower insulin requirements, longer length of stay, and intensive care unit admission but not death. Of 64 survivors with NDDM, 36 (56.3%) continued to have DM, 26 (40.6%) regressed to normoglycemia or pre-diabetes, and 2 were unable to be classified at a median follow-up of 323 days. Conclusions: Diabetes diagnosed at COVID-19 presentation is associated with lower glucose but higher inflammatory markers and ICU admission, suggesting stress hyperglycemia as a major physiologic mechanism. Approximately half of such individuals experience regression of DM. © 2022 Elsevier Inc.