How accurate is my Dexcom ONE compared to my blood glucose meter?
Dexcom CGM systems provide much more information for users than traditional Self-Monitoring of Blood Glucose (SMBG) does. For Dexcom ONE users, the expected level of accuracy is based on comparisons to fingerstick results--which require careful consideration of timing and technique consistency when drawing blooding glucose values.
Here are the accuracy performance characteristics* of the Dexcom ONE system:
Mean ARD% (MARD), 40–400 mg/dL (% average absolute error versus reference across all glucose levels)
|Accuracy Over Time: Mean ARD% (MARD), 40–400 mg/dL|
|92% [100%]||96% [99.8%]|
Reference: Shah VN, et al. Diabetes Technol Ther. 2018;20(6):428–433.
* Reference is YSI (Yellow Springs Laboratory Instrument)
Discover education resources, organised in a 5-step journey, to learn key information about your Dexcom ONE CGM system, from getting started, your first 10 days, to using Dexcom ONE in the long run.
|Step 1:||The basics of CGM|
|Step 2:||Getting started|
|Step 3:||Your first 10 days|
|Step 4:||Using Dexcom ONE in the long run|
|Step 5:||Understand your Diabetes trends|