CANADIAN REAL-WORLD ANALYSIS OF FLASH GLUCOSE MONITORING AND GLYCEMIC CONTROL

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
  • Lori Berard, Canada
Authors
  • Lori Berard, Canada
  • Laura Brandner, United States of America

Abstract

Background and Aims

Prior analyses of data from real-world use of the FreeStyle LibreTM flash glucose monitoring system have associated frequency of scanning with greater time in range, lower hypoglycemia, mean glucose, and glucose variability. The objective of this analysis is to assess outcomes in patients using flash glucose monitoring in Canada including more recently available data.

Methods

Anonymized data collected in Canada through uploads from FreeStyle Libre flash glucose readers was analyzed through September 2019. To understand the relationship between time in range with scanning frequency, individuals were divided into 10 equal-size groups based on scanning frequency. Average + standard error time in range (glucose 3.9 mmol/L–10.0 mmol/L) and time in very low glucose (< 3.0 mmol/L) was calculated for each group.

Results

This analysis includes 41,049 readers, 346,624 sensors, and 393 million glucose measurements with an average of 11 scans/day per user. Patients in the lowest scanning frequency decile (3.3 scans/day) spent 13.1+0.09 hours in range (54.6% time in range) and 23.5+0.64 minutes with a glucose <3.0 mmol/L (1.6% time <3.0 mmol/L) . Patients in the highest scanning frequency decile (29.3 scans/day) spent 16.0+0.08 hours in range (66.7% time in range) and 20.4+0.59 minutes with a glucose <3.0 mmol/L (1.4% time <3.0 mmol/L).

Conclusions

This expanded analysis of real-world data from Canada demonstrates that FreeStyle Libre users monitor their glucose more frequently than the average rate of SMBG in Canada. Additionally, higher frequency of scanning is associated with increased time in range, decreased hypoglycemia, and is consistent with prior analyses.

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