Context: In 2023, we employed Dexcom G6 for real-time continuous glucose monitoring (rt-CGM); it showed high usefulness but unsatisfactory accuracy in type 1 diabetes summer camp (camp) participants.

Objective: To assess the usefulness, recommendation and accuracy of a new rt-CGM system in camp, 2024.

Methods: Sensor glucose (SG) concentrations were measured by Dexcom G7 (G7) from 6 days prior to camp. Usefulness and recommendation were assessed by questionnaire. Twenty-one children with type 1 diabetes and 52 healthcare providers (HCPs) participated. CGM-associated metrics were measured 6 days prior to (off camp: 6 days) and during camp (on camp: 2 days).

Results: G7 was rated highly for its sensor insertion, visualization of SG variation and convenience during camp. The SG value accuracy scored relatively low. G7's usefulness and recommendation among campers were significantly higher than those of G6, utilized the previous year, and they were both almost equally highly rated by HCPs. The mean absolute relative difference (MARD) was 11.3% (G6: 16.0%) on camp and 11.0% (G6: 19.7%) off camp. The coefficient of variation was 34.4% (G6: 60.3%) on camp and 35.9% (G6: 63.1%) off camp, while the glucose management indicator was 7.44% for G7 (G6: 8.04%). The glycemic management metrics on camp were better than those off camp. Graphical analyses also showed sufficient accuracy.

Conclusion: G7 was rated higher in usefulness and recommendation than G6 among participants. G7 also exhibited improved accuracy and was considered a useful rt-CGM tool in a camp setting. Glucose management on camp was significantly improved because of the HCPs' multi-directional efforts.

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http://dx.doi.org/10.1210/clinem/dgaf160DOI Listing

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