Key result
Combining MARD and PARD better characterizes CGM sensor performance.
Why the study?
A consistent evaluation of continuous glucose monitoring systems is lacking due to no consensus on reference methods or acceptance levels, leading to inconclusive performance assessments.
Combining MARD and PARD metrics provides a more robust evaluation of continuous glucose monitoring system accuracy and precision.
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Supports refined CGM accuracy assessment in research; prospective validation needed before clinical adoption.
Obermaier et al. (2013) conducted a review in Diabetes. Mean absolute relative deviation (MARD) and precision absolute relative deviation (PARD) was evaluated on Performance of CGM systems in terms of accuracy and precision. The combined use of mean absolute relative deviation (MARD) and precision absolute relative deviation (PARD) allows for better characterization of continuous glucose monitoring sensor performance.
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