Dexcom G4 Professional User Manual page 190

glucose ranges above and below the paired CGM readings.
Table 3. Concurrence of CGM Readings and YSI Values
CGM
mg/dL
(mmol/L)
40-
< 40 60
(< 2.2) (2.2-
3.3)
< 40
6% 48% 37%
(< 2.2)
40-60
4% 49% 36%
(2.2-3.3)
61-80
0% 22% 51%
(3.4-4.4)
81-120
0% 2%
(4.5-6.7)
121-160
0% 0%
(6.7-8.9)
161-200
0% 0%
(8.9-11.1)
201- 250
0% 0%
(11.1- 13.9)
251- 300
0% 0%
(13.9- 16.7)
301- 350
0% 0%
(16.7- 19.4)
351- 400
0% 0%
(19.4- 22.2)
> 400
0% 0%
(> 22.2)
Accuracy
Accuracy between matched pairs was also estimated by calculating the
percent difference between the System reading and the YSI value. For
example, if the YSI value is 100 mg/dL (5.6 mmol/L) and the System
YSI mg/dL (mmol/L)
Percent of matched pairs in each YSI glucose range
for each Sensor glucose range
61- 81- 121- 161-
80 120 160 200
(3.4- (4.5- (6.7- (8.9-
4.4) 6.7) 8.9) 11.1)
7% 1% 0%
11% 1% 0%
24% 1% 0%
17% 66% 13% 1%
1% 25% 60% 13%
0% 2% 28% 53%
0% 0% 3% 21%
0% 0% 0% 4%
0% 0% 0% 0%
0% 0% 0% 0%
0% 0% 0% 0%
Dexcom G4 PLATINUM Professional System User's Guide
201- 251- 301- 351-
250 300 350 400
(11.1- (13.9- (16.7- (19.4-
13.9) 16.7) 19.4) 22.2)
0% 0% 0% 0%
0% 0% 0% 0%
0% 0% 0% 0%
0% 0% 0% 0%
2% 0% 0% 0%
16% 2% 0% 0%
51% 21% 3% 1%
19% 49% 24% 3%
3% 28% 51% 16%
3% 10% 43% 38%
1% 6% 21% 57%
Number
of
> 400
Paired
(> 22.2)
CGM-
YSI
0% 155
0% 512
0% 781
0% 1706
0% 1492
0% 1240
0% 1181
0% 1018
1% 775
7% 447
15% 248
| 189