Table 3-B. Concurrence of CGM Readings and YSI Values (
Software 505
Study)
CGM
(mg/dL)
YSI (mg/dL)
Row percentage of matched pairs in each CGM glucose range
< 40
40-60 61-80 81-120 121-160 161-200 201-250 251-300 301-350 351-400 > 400
Number of
Paired
CGM-YSI
< 40
6%
83%
11%
0%
0%
0%
0%
0%
0%
0%
0%
18
40-60
2%
74%
22%
3%
0%
0%
0%
0%
0%
0%
0%
120
61-80
0%
19%
68%
13%
0%
0%
0%
0%
0%
0%
0%
226
81-120
0%
0%
19%
72%
8%
1%
0%
0%
0%
0%
0%
347
121-160
0%
0%
0%
17%
72%
11%
0%
0%
0%
0%
0%
246
161-200
0%
0%
0%
0%
25%
59%
16%
0%
0%
0%
0%
286
201- 250
0%
0%
0%
0%
0%
16%
70%
13%
1%
0%
0%
376
251- 300
0%
0%
0%
0%
0%
2%
16%
61%
14%
7%
0%
281
301- 350
0%
0%
0%
0%
0%
0%
2%
28%
59%
10%
1%
229
351- 400
0%
0%
0%
0%
0%
0%
0%
4%
47%
45%
5%
152
> 400
0%
0%
0%
0%
0%
0%
0%
0%
20%
38%
42%
45
Concurrence of System and Laboratory Reference
Tables 3-A and 3-B are categorized by ranges of CGM glucose readings. This table describes, for each
range of CGM glucose readings, what percentage of paired YSI values were in the same glucose range
(shaded) or in glucose ranges above and below the paired CGM readings. For example, based on the
Software 505
Study, when CGM readings are within 81 to 120 mg/dL, you can expect your blood glucose
levels are within 81 to 120 mg/dL 72% of time.