622-P: Frequent Engagement with Retrospective Real-Time CGM Data Is Associated with Improved Glycemic Control

Abstract

Real-time continuous glucose monitoring (CGM) systems allow users to take immediate action based on current glucose and its trajectory; retrospective review of CGM data permits behavior modification according to historic trends. Dexcom CGM Systems allow for data to be uploaded automatically into Dexcom CLARITY for retrospective review. CLARITY mobile app users can also engage with their recent data by setting goals for time in range (TIR; 70-180 mg/dL) and opting to receive push notifications when TIR goals are met. We evaluated the associations between CLARITY engagement and glycemic metrics. Anonymized data uploaded in September 2020 by a convenience sample of 25,000 US-based users of the G6 CGM System (Dexcom, Inc., San Diego, CA) were assessed. Users were stratified by those who engaged with CLARITY never, at least once, or every day in September 2020. Utilization was calculated as the number of sensor glucose values over the number of total possible sensor glucose values for days with ≥1 glucose value. CGM-derived glycemic metrics are shown in the Table. Increased CLARITY engagement was associated with lower mean glucose and higher TIR, mainly attributable to less hyperglycemia. Hypoglycemia exposure was consistently low and did not depend on the extent of CLARITY engagement. Frequent retrospective CGM data review may motivate behaviors that result in improved glycemic control.View largeDownload slideView largeDownload slide DisclosureJ. H. Van der linden: Employee; Self; Dexcom, Inc. S. Puhr: Employee; Self; Dexcom, Inc. J. Welsh: Employee; Self; Dexcom, Inc. T. C. Walker: Employee; Self; Dexcom, Inc.