ABSTRACT
Introduction: The admission blood glucose (ABG) level is associated with increased mortality in non-diabetics patients with Coronavirus disease-2019 (COVID-19) in short-term follow-up studies. However, post-discharge mortality has also increased in COVID-19. Thus, this study aimed to examine the relationship between ABG and 90-day mortality including the post-discharge period. Methods: Non-diabetic patients who are hospitalized due to COVID-19 in 2020 were evaluated. Patients were divided into groups according to the ABG level. Groups 1, 2, and 3 have ABG level of <100 mg/dL, 100-139 mg/dL, and 140-199 mg/dL, respectively. Intensive care unit admission, in-hospital mortality, and 30- and 90-day mortality rates were evaluated as outcomes. COX regression analyzes were used to assess mortality risk factors. Results: A total of 1207 non-diabetic patients, of whom 49.2% were females, with a mean age of 65.2±13.4 years, were included in the study. The patients were followed up for a median of 153 (inter quartile range: 107.5-251, maximum: 369) days. The in-hospital and 30-day mortality of group 2 was higher than group 1 in the univariate analysis but without statistical significance in multivariate analysis. Group 3 had worse outcomes than group 1 in both univariate and multivariate analysis at all endpoints. Group 3 had 2.533 adjusted hazard ratios (95% confidence interval: 1.628-3.941, p<0.001) 90-day mortality compared with group 1. Conclusion: Non-diabetic patients with COVID-19 with an admission glucose level of ≥140 mg/dl had 2.5-fold increased all-cause mortality at 90 days. Therefore, being more careful in treating and following non-diabetic patients with COVID-19, especially those with hyperglycemia at admission, was recommended. [ FROM AUTHOR] Copyright of Istanbul Medical Journal is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full . (Copyright applies to all s.)