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Objective: Diabetes is a known risk factor for severe coronavirus disease 2019 (COVID-19). We conducted this study to determine if there is a correlation between hemoglobin A1C (HbA1C) level and poor outcomes in hospitalized patients with diabetes and COVID-19.
Methods: This is a retrospective, single-center, observational study of patients with diabetes (defined by an HbA1C level of ≥6.5% or known medical history of diabetes) who had a confirmed case of COVID-19 and required hospitalization. All patients were admitted to our institution between March 3, 2020, and May 5, 2020. HbA1C results for each patient were divided into quartiles: 5.1% to 6.7% (32-50 mmol/mol), 6.8% to 7.5% (51-58 mmol/mol), 7.6% to 8.9% (60-74 mmol/mol), and >9% (>75 mmol/mol). The primary outcome was in-hospital mortality. Secondary outcomes included admission to an intensive care unit, invasive mechanical ventilation, acute kidney injury, acute thrombosis, and length of hospital stay.
Results: A total of 506 patients were included. The number of deaths within quartiles 1 through 4 were 30 (25%), 37 (27%), 34 (27%), and 24 (19%), respectively. There was no statistical difference in the primary or secondary outcomes among the quartiles, except that acute kidney injury was less frequent in quartile 4.
Conclusion: There was no significant association between HbA1C level and adverse clinical outcomes in patients with diabetes who are hospitalized with COVID-19. HbA1C levels should not be used for risk stratification in these patients.
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http://dx.doi.org/10.1016/j.eprac.2021.07.008 | DOI Listing |
Rev Med Liege
September 2025
Service de Diabétologie, Nutrition et Maladies métaboliques, CHU Liège, Belgique.
Tirzepatide is a unimolecular dual agonist of both glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP) receptors, recently commercialized and reimbursed in Belgium for the treatment of type 2 diabetes (T2D). Because of the complementarity of action of the two incretins, tirzepatide showed, in a dose-dependent manner (5, 10 and 15 mg as a once-weekly subcutaneous injection), a better efficacy (greater reduction in HbA1c and body weight) compared with placebo, semaglutide 1 mg, basal insulin and preprandial boluses of insulin lispro in six studies of the SURPASS programme. Tirzepatide tolerance is almost similar to that of pure GLP-1 receptor agonists, with digestive adverse events, most often during the first weeks after initiation, which justifies the recommendation of progressive titration every four weeks.
View Article and Find Full Text PDFMol Psychiatry
September 2025
Section on Clinical Genomics and Experimental Therapeutics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA.
Pharmacological modulation of glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP) through dual GIP/GLP-1 receptor agonists, commonly used for diabetes and obesity, shows promise in reducing alcohol consumption. We applied drug-target Mendelian randomization (MR) using genetic variation at these loci to assess their long-term effects on problematic alcohol use (PAU), binge drinking, alcohol misuse classifications, liver health, and other substance use behaviors. Genetic proxies for lowered BMI, modeling the appetite-suppressing and weight-reducing effects of variants in both the GIPR and GLP1R loci ("GIPR/GLP1R"), were linked with reduced binge drinking in the primary (β = -0.
View Article and Find Full Text PDFCurr Med Res Opin
September 2025
Department of Internal Medicine, Taksim Training and Research Hospital, Istanbul, Turkey.
Introduction: Diabetes Mellitus is a chronic disease characterised by elevated plasma glucose (PG) levels. HbA1c has been widely utilized for diabetes diagnosis. However, certain conditions restrict its use.
View Article and Find Full Text PDFJ Eval Clin Pract
September 2025
Health Technology Assessment Unit, Acute and Hospital-Based Care Portfolio, Ontario Health, Toronto, Ontario, Canada.
Rationale: Systematic reviews are essential for evidence-based healthcare decision-making. While it is relatively straightforward to quantitatively assess random errors in systematic reviews, as these are typically reported in primary studies, the assessment of biases often remains narrative. Primary studies seldom provide quantitative estimates of biases and their uncertainties, resulting in systematic reviews rarely including such measurements.
View Article and Find Full Text PDFCochrane Database Syst Rev
September 2025
Cochrane Evidence Synthesis Unit Germany/UK - Sub-Unit Düsseldorf, Institute of General Practice, Centre for Health and Society, Medical Faculty of the Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany.
Background: In order to improve the outcomes of children and adolescents with type 1 diabetes mellitus (T1DM), access to and quality of comprehensive acute and chronic care services in low- and middle-income countries (LMIC) must be improved.
Objectives: To identify and summarise the characteristics of models of care for T1DM in children and adolescents in LMIC.
Search Methods: We searched MEDLINE, Scopus, the Cochrane Central Register of Controlled Trials (CENTRAL), and the World Health Organization (WHO) Global Index Medicus from inception to 11 December 2023 without restrictions.