• J Diabetes Sci Technol · Feb 2021

    Glycemic Variability Assessment with a 14-Day Continuous Glucose Monitoring System: When and How Long to Measure MAGE (Mean Amplitude of Glucose Excursion) for Optimal Reliability?

    • Bruno Vergès, Elise Pignol, Alexia Rouland, Benjamin Bouillet, Sabine Baillot-Rudoni, Emilienne Quilot, Abdelmadjid Djeffal, and Jean Michel Petit.
    • Department of Endocrinology-Diabetology, CHU Dijon, Dijon, France.
    • J Diabetes Sci Technol. 2021 Feb 10: 1932296821992060.

    AbstractMean amplitude of glucose excursion (MAGE) is considered as the "gold standard" for assessing the short-term within-day glycemic variability (GV), which is an important component of overall glycemic control. A 14-day continuous glucose monitoring system is now widely used and allows easier assessment of GV. However, it is still unknown whether MAGE, usually calculated on a 48-hour period is identical whatever the time during the 14-day lifespan of the sensor and whether a longer time period might give additional information. We evaluated in 68 patients with type 1 diabetes, MAGE during three 2-day periods (day1-day3; day6-day8; day11-day13) and during periods of 3 days and 4 days. MAGE calculated at the three 2-day periods were identical and not different from MAGE of the 3-day or 4-day periods.

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