![background image](http://html1.mh-extra.com/html/abbott/freestyle-librepro/freestyle-librepro_operators-manual_450946051.webp)
Overall Accuracy against YSI Reference
Accuracy was measured by comparing the absolute relative difference between the System and
reference YSI glucose values. The absolute relative difference measures the level of disagreement
between the System and the reference value, but does not tell you whether the System glucose
value was, on average, higher or lower than the reference glucose value. The Mean Absolute
Relative Difference gives an indication of the average percent disagreement between the GM and
the reference.
Table 4
shows the absolute difference measures by glucose level. Overall the Mean
Absolute Relative Difference was 12.3% for the comparison with YSI reference. The Median Absolute
Relative Difference shows that half of the time the System was within 10.1% of the YSI reference.
48