Product Info

Glucose detection rates are important because it is necessary that users be notified
when their BG is low (or high) so that they can correct the low (or high) BG. A
high glucose correct detection rate indicates that users can have confidence that
they will be notified by the device if their BG is low or high.
For example, per the following table, the threshold alert, the predictive alert, or
both (threshold and predictive) notified the user 64%, 76%, or 76% of the time
within 30 minutes (or 64%, 68%, or 68% within 15 minutes) when the user had BG
less than 50 mg/dL for a sensor inserted in the abdomen.
Table C-3: Glucose Correct Detection Alert Performance using Calibration every 12 hours
Glucose Correct Detection Rate
mg/dL Insertion Site Threshold Only Predictive Only Threshold & Predictive
30 min 15 min 30 min 15 min 30 min 15 min
50 Abdomen 64.0% 64.0% 76.0% 68.0% 76.0% 68.0%
Arm 66.7% 66.7% 95.2% 71.4% 95.2% 76.2%
60 Abdomen 83.3% 82.1% 94.0% 88.1% 94.0% 89.3%
Arm 86.3% 83.6% 98.6% 94.5% 98.6% 97.3%
70 Abdomen 90.5% 90.5% 94.2% 89.8% 94.2% 92.0%
Arm 90.2% 88.6% 92.7% 90.2% 93.5% 91.9%
80 Abdomen 87.2% 87.2% 93.6% 87.2% 93.6% 89.9%
Arm 89.0% 88.4% 94.8% 86.6% 95.9% 92.4%
90 Abdomen 91.1% 88.7% 94.6% 89.5% 95.7% 92.2%
Arm 91.7% 90.4% 96.9% 91.7% 97.8% 95.6%
180 Abdomen 93.1% 91.4% 96.6% 93.4% 96.9% 95.4%
Arm 93.2% 92.2% 98.1% 94.2% 98.7% 96.4%
220 Abdomen 90.1% 89.2% 94.8% 93.5% 95.3% 94.4%
Arm 90.1% 89.2% 96.1% 93.6% 96.1% 95.6%
250 Abdomen 81.5% 80.9% 96.5% 91.3% 96.5% 93.6%
Arm 80.9% 79.6% 96.7% 90.8% 96.7% 91.4%
300 Abdomen 75.3% 75.3% 95.3% 92.9% 95.3% 94.1%
Arm 74.4% 71.8% 93.6% 89.7% 93.6% 89.7%
Glucose Missed Detection Rate
The Missed Detection Rate is the rate that the device did not alert when it should
have. For example, the BG was below the hypoglycemic threshold, or above the
hyperglycemic threshold, and the device did not sound a threshold or predictive
alert.
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670G Performance Data and Technical Information
670G Performance Data and Technical Information 347