Objective: To describe in-hospital blood glucose levels and their association with mortality among patients with COVID-19 and type 2 diabetes.
Subjects and methods: A retrospective descriptive-analytical study was conducted on 154 patients with COVID-19 and type 2 diabetes hospitalized at Hospital for Tropical Diseases, Ho Chi Minh city from June 2021 to September 2022.
Results: Among 154 patients, 31 died, accounting for 20.1%. The mean blood glucose level at admission was 243 ± 152 mg/dL, and the mean in-hospital blood glucose level was 223 ± 55 mg/dL. A total of 121 patients had mean in-hospital blood glucose > 180 mg/dL, accounting for 78.6%. Non-survivors had higher mean in-hospital blood glucose than survivors, 244 ± 47 mg/dL versus 217 ± 55 mg/dL; p = 0.015. Mean in-hospital blood glucose > 180 mg/dL was observed in 30/31 non-survivors and 91/123 survivors and was associated with mortality in univariable analysis, with OR = 10.55; 95% CI: 1.38-80.54; p = 0.006.
Conclusion: Mean in-hospital blood glucose > 180 mg/dL was common among patients with COVID-19 and type 2 diabetes and was associated with mortality in univariable analysis. Close blood glucose monitoring is needed in this patient group during treatment.