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Differences in accuracy between systems were assessed by comparing MARD values of the five BGMSs included in the trial. The mean of the ARD values was calculated to obtain the mean absolute relative difference (MARD) for each BGMS (lower MARD values indicate greater accuracy). Accuracy was assessed by calculating the deviation of meter readings from laboratory reference values, or the absolute relative difference (ARD). The secondary objective was to examine differences in accuracy between the EZ and the other BGMSs in the low glucose range (<70 mg/dl). 8– 13 The primary objective of this study was to evaluate differences in accuracy between the EZ and four other BGMSs across a wide glucose range.

Several studies have evaluated the comparative accuracy and precision of many different BGMSs currently used for self-monitoring of blood glucose, but none have included the EZ BGMS.

3, 4 The accuracy and ease of use of the EZ in the hands of people with diabetes has also been demonstrated in other studies. 5 Moreover, >99% of results were within ☑0 mg/dl or ☑0% of the reference result. Previous studies 3, 4 examined the analytical accuracy of the EZ and revealed that the system achieved 100% of results within the new International Organization for Standardization (ISO) ISO15197:2013 accuracy criteria. The system utilizes CONTOUR NEXT reagent test strips containing flavin adenine dinucleotide-glucose dehydrogenase enzyme in combination with a proprietary electron mediator. The CONTOUR ® NEXT EZ (EZ CONTOUR XT outside the United States) BGMS was developed for use with fresh capillary whole blood samples. 1, 2 Therefore, performance and accuracy of blood glucose monitoring systems (BGMSs) require careful consideration and optimization. Obtaining accurate results is critical, as people with diabetes may rely on glucose meter readings to detect and properly manage hypoglycemia and hyperglycemia, titrate insulin doses and calibrate continuous glucose monitoring devices, adjust their diet and exercise, and improve their overall decision making in the management of their disease. Self-monitoring of blood glucose plays a significant role in diabetes management.