Factors Associated With Discordant A1C-Estimated and Measured Average Glucose Among Hospitalized Patients With Diabetes

Sara Wallam, Mohammed S. Abusamaan, William Clarke, Nestoras Mathioudakis

Research output: Contribution to journalArticlepeer-review

Abstract

In this retrospective analysis, we explored the correlation between measured average glucose (mAG) and A1C-estimated average glucose (eAG) in hospitalized patients with diabetes and identified factors associated with discordant mAG and eAG at the transition from home to hospital. Having mAG lower than eAG was associated with Black race, other race, increasing length of stay, community hospital setting, surgery, fever, metformin use, certain inpatient diets, home antihyperglycemic treatment, and coded type 1 or type 2 diabetes. Having mAG higher than eAG was associated with certain discharge services (e.g., intensive care unit), higher BMI, hypertension, tachycardia, higher albumin, higher potassium, anemia, inpatient glucocorticoid use, and treatment with home insulin, secretagogues, and glucocorticoids. These factors should be considered when using patients’ A1C as an indicator of outpatient glycemic control to determine the inpatient antihyperglycemic regimens.

Original languageEnglish (US)
Pages (from-to)208-219
Number of pages12
JournalClinical Diabetes
Volume41
Issue number2
DOIs
StatePublished - Mar 2023

ASJC Scopus subject areas

  • Internal Medicine
  • Endocrinology, Diabetes and Metabolism

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