Accuracy of Dexcom G6 Continuous Glucose Monitoring in Non-Critically Ill Hospitalized Patients with Diabetes

• DOI: 10.2337/figshare.14454357
• Publication Date: 2021-06-07T17:35:44Z
• Authors: Georgia M. Davis; Elias K. Spanakis; Alexandra L. Migdal; Lakshmi G. Singh; Bonnie Albury; Maria Agustina Ur...; K. Walkiria Zamud...; William H. Scott; Rebecca Doerfler; Sergio Lizama; Medha Satyarengga; Kashif Munir; Rodolfo J. Galindo; Priyathama Vellanki; Saumeth Cardona; Francisco J. Pasquel; Limin Peng; Guillermo E. Umpi...
• Keywords: Blood Glucose Self-Monitoring

<b>Background: </b>Advances in continuous glucose monitoring (CGM) have transformed ambulatory diabetes management. Until recently, inpatient use of CGM has remained investigational with limited data on its accuracy the hospital setting. <p><b>Methods: </b>To analyze Dexcom G6 CGM,<b> </b>we compared retrospective matched-pair and capillary point-of-care (POC) from three studies (two interventional one observational) general medicine surgery patients treated insulin. Analysis metrics included mean absolute relative difference (MARD), median (ARD), proportion values within ±15, 20 30% or 30 mg/dL POC reference for blood >100 ≤100 mg/dL, respectively (?/15, /20, 0/30). Clinical reliability was assessed using Clarke error grid analyses.</p> <p><b>Results: </b>A total 218 were (96% type 2 diabetes) a age 60.6 ± 12 years. The overall MARD (n=4,067 matched pairs) 12.8% ARD 10.1% [IQR 4.6, 17.6]. readings meeting ?/15, /20 0/30 criteria 68.7, 81.7, 93.8%. analysis showed 98.7% all zones A+B. higher hypoglycemia (<70mg/dL) severe anemia (hemoglobin <7g/dL).</p> <p><b>Conclusion: </b>Our results indicate that technology is reliable tool may help improve non-critically ill hospitalized diabetes. </p>