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Table 8-B. Data availability rate by wear day – pediatrics 2-6 YO upper
buttocks (n=16)
Wear day Number of sensors Data availability rate (%)
1
16
2
15
3
13
4
13
5
13
6
13
7
13
8
11
9
10
10
10
Precision of system readings
A subset of subjects wore two G7s at the same time (n=82). This was to look at how
similarly two systems function on the same subject (sensor precision) under the same
conditions. Precision was evaluated by comparing the glucose readings from the two
systems worn on the same subject at the same time on the same location.
Table 9 shows the sensor readings from the two sensors had better agreement when
CGM sensor readings from the two sensors worn at the same location were paired.
For adults (18+ years old), the paired absolute relative difference (PARD) between the
two systems was 8.9% and the coefficient of variation (CV) was 6.3%. For pediatrics
(2-6 years old) wearing sensors on the arm, the PARD was 6.1% and the CV was
4.3%.
E • Technical Information |
98.9
99.1
99.7
99.6
99.1
98.0
97.9
98.7
98.0
96.1
Dexcom G7 User Guide
151
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Do you have a question about the G7 and is the answer not in the manual?
Questions and answers
Dexcom G7 continues to show readings 50 or 60 points higher than when I stick my finger and use the supplied recorder. Why?
The Dexcom G7 may show readings 50 or 60 points higher than fingerstick measurements due to several reasons:
1. Sensor's First Day: Newly inserted sensors may show larger differences, which usually decrease over the first 24 hours.
2. Pressure on Sensor: If something is pressing on the sensor (e.g., lying on it), it can affect readings. Removing the pressure can help.
3. Rapid Glucose Changes: Blood glucose changes before interstitial fluid glucose, so fast changes can cause differences between meter and sensor readings.
4. Fingerstick Issues: Inaccurate fingerstick readings can occur if hands are not washed properly or test strips are expired or used incorrectly.
These factors can cause temporary differences between Dexcom G7 and fingerstick readings.
This answer is automatically generated
How high does the Dexcom 7 reciever go?