Impacts of COVID-19 on Glycemia and Risk of Diabetic Ketoacidosis

• Published in: Diabetes (New York, N.Y.) Vol. 72; no. 5; pp. 627 - 637
• Main Authors: Sharma, Anukriti, Misra-Hebert, Anita D., Mariam, Arshiya, Milinovich, Alex, Onuzuruike, Anthony, Koomson, Wilhemina, Kattan, Michael W., Pantalone, Kevin M., Rotroff, Daniel M.
• Format: Journal Article
• Language: English
• Published: United States American Diabetes Association 01.05.2023
• Subjects: Blood glucose; Coronaviruses; COVID-19; COVID-19 - complications; COVID-19 - epidemiology; Diabetes; Diabetes mellitus (insulin dependent); Diabetes mellitus (non-insulin dependent); Diabetes Mellitus, Type 1; Diabetes Mellitus, Type 2 - complications; Diabetic ketoacidosis; Diabetic Ketoacidosis - epidemiology; Diabetic Ketoacidosis - etiology; Glycated Hemoglobin; Humans; Ketoacidosis; Statistical analysis
• ISSN: 0012-1797; 1939-327X; 1939-327X
• DOI: 10.2337/db22-0264

Reports indicate that coronavirus disease 2019 (COVID-19) may impact pancreatic function and increase type 2 diabetes (T2D) risk, although real-world COVID-19 impacts on HbA1c and T2D are unknown. We tested whether COVID-19 increased HbA1c, risk of T2D, or diabetic ketoacidosis (DKA). We compared pre– and post–COVID-19 HbA1c and T2D risk in a large real-world clinical cohort of 8,755 COVID-19(+) patients and 11,998 COVID-19(−) matched control subjects. We investigated whether DKA risk was modified in COVID-19(+) patients with type 1 diabetes (T1D) (N = 701) or T2D (N = 21,830), or by race and sex. We observed a statistically significant, albeit clinically insignificant, HbA1c increase post–COVID-19 (all patients ΔHbA1c = 0.06%; with T2D ΔHbA1c = 0.1%) and no increase among COVID-19(−) patients. COVID-19(+) patients were 40% more likely to be diagnosed with T2D compared with COVID-19(−) patients and 28% more likely for the same HbA1c change as COVID-19(−) patients, indicating that COVID-19–attributed T2D risk may be due to increased recognition during COVID-19 management. DKA in COVID-19(+) patients with T1D was not increased. COVID-19(+) Black patients with T2D displayed disproportionately increased DKA risk (hazard ratio 2.46 [95% CI 1.48–6.09], P = 0.004) compared with White patients, suggesting a need for further clinical awareness and investigation.