Freestyle Libre 14 day User Manual page 125

Detection of Hypoglycemic and Hyperglycemic Events
Table 13 shows the accuracy of the System's Glucose Messages in informing the user of low or
high glucose events within 15 minutes before or after the true low or high blood glucose value.
Percentages are displayed for three different parameters:
• Detection Rate – amount of time the System displays a Glucose Message correctly.
• Missed Detection Rate – amount of time the System did not display a Glucose Message when it
should have.
• False Notification Rate – amount of time the System displays a Glucose Message when it shouldn't
have.
For example, in the clinical study, the System was able to detect 77.6% of actual low glucose
events (detection rate), but 52.5% of the time a Low Glucose message was displayed in error (false
notification rate) and 22.4% of the time a Low Glucose message was not displayed when it should
have been (missed detection rate).
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