![background image](http://html1.mh-extra.com/html/abbott/freestyle-librepro/freestyle-librepro_operators-manual_450946052.webp)
Table 4: Difference Measures by YSI Reference Glucose Levels
YSI Reference
Reference Glucose
Level (mg/dL)
Number of GM-
Reference Pairs
Median Absolute
Relative Difference (%)
Mean Absolute Relative
Difference (%)
Overall
12323
10.1
12.3
40-50*
30
14.2
15.8
51-80*
505
12.5
15.5
81-180
7373
10.7
12.9
181-300
4115
8.7
10.1
301-400
286
7.8
8.8
401-500
14
4.2
7.2
* For reference values ≤ 80 mg/dL, the mean and median absolute differences (mg/dL) are presented instead of
mean and median absolute relative differences (%).
49