79-LB: Automatically Generated Continuous Glucose Monitoring (CGM) Notifications and Their Association with Glycemic Control

Abstract

CGM data can be summarized and reviewed retrospectively. CLARITY provides options for reviewing data from Dexcom CGM systems, including on-demand reports and five types of notifications (disabled by default) that are auto-generated and pushed to users’ smart devices. We examined user engagement with CLARITY reports and notifications, and their associations with estimated glucose value (EGV)-based parameters. EGVs uploaded in October 2019 from a convenience sample of 2,637 U.S.-based users of Dexcom CGM systems were analyzed. Group 1 did not access CLARITY, Group 2 accessed on-demand reports but not auto-generated notifications, and Group 3 enabled all types of auto-generated notifications throughout that month. For each group, EGV-based parameters including time in range (TIR) and the % of users meeting consensus-based goals were calculated. Unpaired t-tests were used to compare time in ranges; two-proportion z-tests were used to compare % of users meeting goals. Auto-generated CLARITY notifications were associated with more TIR and less time spent in hyperglycemia, with clinically and statistically significant differences in favor of Group 3 vs. Group 1. A significantly higher proportion of users in Group 3 than in Group 1 met consensus goals for TIR (Table). Push notifications related to CGM data may contribute to patient engagement and/or to beneficial therapeutic choices. Disclosure K. Shankar: Employee; Self; Dexcom, Inc. P. Hastedt: None. M. Derdzinski: Employee; Self; Dexcom, Inc. J. Welsh: Employee; Self; CSL Behring. C. Barger: Employee; Self; Dexcom, Inc. G. Cohen: Employee; Self; Dexcom, Inc.