Table 2.
CGM Use and CGM Performance.
| CGM blind | CGM real time | P | |
|---|---|---|---|
| Mean duration of use in hours ± SD | 106 ± 16.9 | 108.2 ± 24.1 | .553 |
| Mean correlations between reference method and CGM | .112a | ||
| Pearson’s r | .91 | .89 | |
| Fisher’s Z | 1.53 ± 0.32 | 1.42 ± 0.30 | |
| MARD ± SD between reference methods and CGM | 16.8 ± 4.7 | 17.0 ± 4.5 | .792 |
| MARD ± SD between reference methods and CGM in different glycemic ranges | |||
| Hypoglycemia (≤70 mg/dl) | 25.7 ± 30.0 | 25.0 ± 20.7 | .732 |
| Euglycemia (>70-≤180 mg/dl) | 16.2 ± 16.8 | 16.4 ± 16.8 | .739 |
| Hyperglycemia (>180 mg/dl) | 14.1 ± 14.3 | 14.5 ± 13.3 | .785 |
| % within EN ISO Norm 15197 ± SD | 72.9 ± 12.0 | 69.0 ± 11.7 | .106 |
MARD, mean absolute relative difference.
a
Significance tests based on Fisher’s Z transformations.