HbA1c Stratification Identifies High-Risk ICU Patients: Mortality and Complications in a Retrospective Critical Care Cohort.
IntroductionGlycemic variability is common in critical illness and can obscure the prognostic significance of premorbid glycemic status. Hemoglobin A1c (HbA1c) reflects chronic glycemia and may improve risk stratification beyond acute glucose measurements. We examined whether HbA1c-defined glycemic phenotypes were asso...