Is single point HbA1c a reliable predictor for death in severe COVID-19?

Hadiseh Hosamirudsari1, Yousef Alimohamadi2, Majid Akrami3

  • 1Department of Infectious Diseases, Baharloo Hospital, Railway Square, Tehran University of Medical Sciences, Tehran, Iran.

Insights

Single-point HbA1c levels did not predict COVID-19 severity or mortality in hospitalized patients. This finding suggests that routine HbA1c testing may not be a reliable indicator for managing COVID-19 outcomes in diabetic patients.

Area of Science:

  • Medical Research
  • Infectious Diseases
  • Endocrinology

Background:

  • Diabetes Mellitus (DM) is a known risk factor influencing COVID-19 severity.
  • Assessing predictors of COVID-19 outcomes is crucial for patient management.

Purpose of the Study:

  • To evaluate the association between single-point HbA1c measurements and the severity and mortality of hospitalized COVID-19 patients.
  • To determine if HbA1c can serve as a predictive marker for COVID-19 outcomes.

Main Methods:

  • A cross-sectional study involving 165 hospitalized COVID-19 patients (moderate to severe) diagnosed via PCR and CT imaging.
  • Data collected included demographics, clinical presentation, laboratory results (including single-point HbA1c and Fasting Blood Sugar - FBS), and treatments.
  • Statistical analysis was performed to assess the relationship between HbA1c, FBS, and COVID-19 severity and mortality.

Main Results:

  • The study included 165 patients, with 76.4% classified as severe COVID-19 cases.
  • Severe cases experienced longer hospital stays and higher inflammatory mediator levels (p < 0.05).
  • No statistically significant association was found between single-point HbA1c or FBS and COVID-19 severity or mortality (p > 0.05).

Conclusions:

  • Single-point HbA1c measurements are not a reliable predictor for COVID-19 severity or mortality in hospitalized patients.
  • Further research may be needed to explore other glycemic control markers or factors in relation to COVID-19 outcomes.
Abstract