Table 4.
Error Matrix of CG-EGA for Predicted Glucose Values with PH = 6 of Group B: (A) Healthy Subgroup and (B) Type 2 Diabetes Subgroup
| |
Point error grid zones |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| |
Hypoglycemia (BG ≤ 70 mg/dL) |
Normoglycemia (70 < BG ≤ 180 mg/dL) |
Hyperglycemia (BG > 180 mg/dL) |
||||||||
| Rate error grid zone | A | D | E | A | B | C | A | B | C | D | E |
| (A) Healthy | |||||||||||
| A | 92.31% | 0% | 0% | 85.17% | 0.46% | 0% | — | — | — | — | — |
| B | 0% | 0% | 0% | 9.52% | 0.32% | 0% | — | — | — | — | — |
| uC | 0% | 0% | 0% | 1.74% | 0.23% | 0% | — | — | — | — | — |
| lC | 7.69% | 0% | 0% | 2.29% | 0.27% | 0% | — | — | — | — | — |
| uD | 0% | 0% | 0% | 0% | 0% | 0% | — | — | — | — | — |
| lD | 0% | 0% | 0% | 0% | 0% | 0% | — | — | — | — | — |
| uE | 0% | 0% | 0% | 0% | 0% | 0% | — | — | — | — | — |
| lE | 0% | 0% | 0% | 0% | 0% | 0% | — | — | — | — | — |
| (B) Diabetes | |||||||||||
| A | 81.76% | 1.18% | 0% | 72.43% | 1.18% | 0% | 70.23% | 1.00% | 0% | 0.08% | 0% |
| B | 11.18% | 0.59% | 0% | 17.05% | 0.84% | 0.04% | 18.23% | 0.33% | 0.17% | 0% | 0% |
| uC | 2.35% | 0% | 0% | 3.49% | 0.30% | 0% | 4.10% | 0.25% | 0% | 0% | 0% |
| lC | 2.94% | 0% | 0% | 3.58% | 0.25% | 0% | 4.01% | 0.17% | 0% | 0% | 0% |
| uD | 0% | 0% | 0% | 0.04% | 0% | 0% | 0.17% | 0% | 0% | 0% | 0% |
| lD | 0% | 0% | 0% | 0.04% | 0.17% | 0% | 0.08% | 0% | 0.17% | 0% | 0% |
| uE | 0% | 0% | 0% | 0.21% | 0% | 0% | 0.42% | 0% | 0% | 0% | 0% |
| lE | 0% | 0% | 0% | 0.30% | 0.08% | 0% | 0.59% | 0% | 0% | 0% | 0% |
The healthy subgroup had no measurements in the hyperglycemic range. The normal type, italic type, and bold type represent accurate readings, benign errors, and erroneous readings, respectively. BG, blood glucose; l, lower; u, upper.