![background image](http://html1.mh-extra.com/html/abbott/freestyle-librepro/freestyle-librepro_operators-manual_450946065.webp)
System Glucose Availability
The System is designed to generate a GM value every 15 minutes throughout the sensor wear time. Overall, 202
sensors were inserted. 167 sensors produced glucose readings and are included in the analysis. There were
35 sensors that failed at insertion (i.e. no glucose reading generated) and are not included in the analysis. There
were 62.5% of primary sensors that worked for 14 days. The mean sensor duration for all primary sensors was
determined to be 258 hours, and the median duration of was 327 hours.
Table 14
shows the number of available glucose readings reported by all sensors (by sensor operational hour)
that produced at least one GM reading during the clinical study over the 14-day wear period. The percentage of
available GM readings is presented in comparison to the number of expected GM readings based on the number of
hours of sensor wear. Overall, 96.9% (153,169 GM readings out of expected 158,052) of GM readings were available.
Table 14: GM Availability
Operational Hour
No. Historic GM
Expected No.
%
0 - 24
81
83
97.6
24 - 48
795
813
97.8
48 - 72
1170
1201
97.4
72 - 96
1053
1080
97.5
96 - 120
1187
1230
96.5
120 - 144
2630
2725
96.5
144 - 168
3262
3356
97.2
168 - 192
4478
4617
97.0
192 - 216
5101
5223
97.7
216 - 240
3413
3531
96.7
240 - 264
5611
5759
97.4
264 - 288
7021
7184
97.7
288 - 312
6300
6400
98.4
312 - 336
111067
114850
96.7
Overall
153169
158052
96.9
62