COMPARISON OF GLYCEMIC VARIABILITY METRIC VALUES CALCULATED FROM SENSOR GLUCOSE LEVELS MEASURED EVERY 5 AND 15 MINUTES USING CONTINUOUS GLUCOSE MONITOR DATA

Session Name
GLUCOSE SENSORS
Session Type
E-POSTER VIEWING (EXHIBITION HOURS)
Date
20.02.2020, Thursday
Session Time
09:30 - 15:30
Channel
E-Poster Area
Lecture Time
09:30 - 09:30
Presenter
  • SOICHI Takeishi, Japan
Authors
  • SOICHI Takeishi, Japan
  • Hiroki Tsuboi, Japan

Abstract

Background and Aims

Measurement frequency of continuous glucose monitor (CGM) may affect accuracy of glycemic variability (GV) metric values. We compared GV calculated from sensor glucose levels (SG) measured every 5 and 15 min.

Methods

We cross-sectionally investigated CGM (iPro2) data in 110 patients with type 2 diabetes whose 24-h SG was measured continuously during hospitalization for type 2 diabetes treatment. Mean glucose level, standard deviation (SD), coefficient of variation (CV), percentage of time in target range (70–180 mg/dL) [TIR 70–180], mean absolute glucose (MAG), glycemic variability percentage (GVP), low blood glucose index and high blood glucose index were calculated as GV. GV calculated from SG measured every 5 min in iPro2 and GV calculated from SG extracted every 15 min in iPro2 were compared.

Results

GV calculated from SG measured every 5 min and GV calculated from SG extracted every 15 min were almost equal numerically in all the GVs evaluated in this study. However, GV calculated from SG extracted every 15 min was statistically significantly higher than that calculated from SG measured every 5 min in SD and CV. Also, GV calculated from SG extracted every 15 min was statistically significantly lower than that calculated from SG measured every 5 min in MAG and GVP (Table).attd 2020 2 figure.jpg

Conclusions

GV calculated from SG measured every 5 min and GV calculated from SG extracted every 15 min were almost equal numerically in all GVs evaluated in this study.

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