G6 Pro User Guide
129Appendix G: Technical Information
The Low Glucose Alert
Estimates of how well the adjustable Low Glucose Alert performs are
presented in Tables 5-A and 5-B. Tables 5-A and 5-B represent the
hypoglycemic alert evaluation within 15 minutes of the YSI value in
the study and the hypoglycemic event evaluation within 15 minutes of
each hypoglycemic alert for adults and pediatrics, respectively.
Hypoglycemic Alert Rate
The Alert Rate shows how often the alert is right or wrong. The True
Alert Rate is the % of time the device alarmed when the blood glucose
level was at or below the alert setting within 15 minutes before or after
the device alarmed. The False Alert Rate is the % of time the device
alarmed when the blood glucose level was above the alert setting
within 15 minutes before or after the device alarmed.
For example, if you set the Low Glucose Alert to 70 mg/dL and your
alarm sounds, how often can you expect your blood sugar to actually
be low? Based on results for adults in the G6 Study (Table 5-A), when
your alarm sounds, you can expect your blood sugar to be below
70 mg/dL approximately 85.5% of the time and above 70 mg/dL
approximately 14.5% of the time within the 15 minute period before or
after your alarm sounds.
When the hypoglycemic alert rate was set at 55 mg/dL, and an alert
was provided, glucose was <70 mg/dL 85% of the time within 15
minutes of the alert. (Data not presented in table.)
When the hypoglycemic alert rate was set at 60 mg/dl, and an alert
was provided, glucose was <70 mg/dl 87% of the time within 15
minutes of the alert. (Data not presented in table.)
Hypoglycemic Detection Rate
The Detection Rate is the % of time the device alarmed when the
blood glucose level was at or below the alert setting within 15 minutes
before or after the hypoglycemic event. The Missed Detection Rate is
the % of time the device did not alarm when the blood glucose level
was at or below the alert setting within 15 minutes before and after the
hypoglycemic event.
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