Difference between GMI (calculated from CGM-derived mean glucose) and laboratory-measured HbA1c
| Absolute value of difference between GMI and laboratory HbA1c (%) . | Percentage of values (95% CI) . | ||
|---|---|---|---|
| Guardian 3 sensor (n = 85) . | Navigator 2 (n = 114) . | Dexcom sensors** . | |
| 0 to <0.1 | 19 (11–29) | 20 (13–29) | 19 (16–22) |
| ≥0.1 | 81 (71–89) | 80 (72–87) | 81 (78–84) |
| ≥0.2 | 66 (55–76) | 68 (58–76) | 67 (63–71) |
| ≥0.3 | 54 (43–66) | 56 (46–65) | 51 (47–55) |
| ≥0.4 | 42 (32–54) | 46 (36–56) | 39 (34–43) |
| ≥0.5 | 32 (22–43) | 36 (27–46) | 28 (24–32) |
| ≥0.6 | 24 (15–34) | 28 (20–37) | 19 (15–22) |
| ≥0.7 | 13 (7–22) | 21 (14–30) | 12 (9–15) |
| ≥0.8 | 11 (5–19) | 12 (6–19) | 8 (5–10) |
| ≥0.9 | 5 (1–12) | 8 (4–15) | 4 (3–6) |
| ≥1 | 3 (1–10) | 5 (2–10) | 3 (2–4) |
| Absolute value of difference between GMI and laboratory HbA1c (%) . | Percentage of values (95% CI) . | ||
|---|---|---|---|
| Guardian 3 sensor (n = 85) . | Navigator 2 (n = 114) . | Dexcom sensors** . | |
| 0 to <0.1 | 19 (11–29) | 20 (13–29) | 19 (16–22) |
| ≥0.1 | 81 (71–89) | 80 (72–87) | 81 (78–84) |
| ≥0.2 | 66 (55–76) | 68 (58–76) | 67 (63–71) |
| ≥0.3 | 54 (43–66) | 56 (46–65) | 51 (47–55) |
| ≥0.4 | 42 (32–54) | 46 (36–56) | 39 (34–43) |
| ≥0.5 | 32 (22–43) | 36 (27–46) | 28 (24–32) |
| ≥0.6 | 24 (15–34) | 28 (20–37) | 19 (15–22) |
| ≥0.7 | 13 (7–22) | 21 (14–30) | 12 (9–15) |
| ≥0.8 | 11 (5–19) | 12 (6–19) | 8 (5–10) |
| ≥0.9 | 5 (1–12) | 8 (4–15) | 4 (3–6) |
| ≥1 | 3 (1–10) | 5 (2–10) | 3 (2–4) |
**Dexcom data from Bergenstal et al. (1).