Abbott FreeStyle LibrePro - Page 51

Overall Accuracy against YSI Reference
Accuracy was measured by comparing the absolute relative dierence between the System and
reference YSI glucose values. The absolute relative dierence 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 Dierence gives an indication of the average percent disagreement between the GM and
the reference. Table 4 shows the absolute dierence measures by glucose level. Overall the Mean
Absolute Relative Dierence was 12.3% for the comparison with YSI reference. The Median Absolute
Relative Dierence shows that half of the time the System was within 10.1% of the YSI reference.
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