Table 2.
HbA1c, glycated albumin, fructosamine, and long-term glycemic variability stratified by small vessel disease findings in brain MRI in individuals with type 1 diabetes
| Cerebral small vessel disease | Cerebral microbleeds | White matter hyperintensities | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Presence (n = 66) | Absence (n = 123) | p | Presence (n = 45) | Absence (n = 144) | p | Presence (n = 32) | Absence (n = 157) | p | |
| HbA1c, %, (mmol/mol) | 8.2 (7.6–8.9), (66.0 [59.8–73.3]) | 8.0 (7.3–8.8), (64.0 [56.0–73.0]) | 0.259 | 8.2 (7.6–8.9), (66.0 [60.0–73.0]) | 8.1 (7.4–8.8), (65.0 [57.0–73.0]) | 0.419 | 8.2 (7.4–8.7), (65.5 [58.3–72.0]) | 8.1 (7.4–8.9), (65.0 [57.0–73.0]) | 0.838 |
| GA, nM/ml | 97.2 (73.9–117.8) | 89.6 (76.3–115.9) | 0.704 | 102.9 (73.9–125.3) | 90.3 (76.3–115.2) | 0.580 | 98.0 (82.6–113.7) | 89.8 (74.0–117.8) | 0.492 |
| FA, mM/l | 2.6 (2.4–2.9) | 2.5 (2.3–3.0) | 0.587 | 2.6 (2.4–2.9) | 2.5 (2.3–3.0) | 0.439 | 2.6 (2.4–3.0) | 2.6 (2.4–3.0) | 0.429 |
| HbA1c-meanoverall, %, (mmol/mol) | 8.3 ± 1.0, (67.4 ± 11.2) | 8.0 ± 0.9, (64.2 ± 9.5) | 0.141 | 8.3 ± 0.9, (67.2 ± 10.3) | 8.1 ± 0.9, (64.7 ± 10.2) | 0.280 | 8.2 ± 1.1, (66.4 ± 12.0) | 8.1 ± 0.9, (65.1 ± 9.9) | 0.787 |
| HbA1c-SD, % | 0.57 (0.42–0.78) | 0.61 (0.44–0.81) | 0.655 | 0.56 (0.42–0.76) | 0.61 (0.44–0.82) | 0.514 | 0.52 (0.39–0.97) | 0.61 (0.46–0.81) | 0.445 |
| HbA1c-adjSD, % | 0.55 (0.40–0.73) | 0.58 (0.43–0.78) | 0.771 | 0.53 (0.40–0.72) | 0.58 (0.43–0.79) | 0.577 | 0.51 (0.39–0.93) | 0.57 (0.44–0.75) | 0.480 |
| HbA1c-CV, % | 6.7 (5.5–8.7) | 7.6 (5.7–9.9) | 0.245 | 6.7 (5.5–8.5) | 7.4 (5.7–10.1) | 0.219 | 6.0 (5.0–11.5) | 7.5 (5.8–9.5) | 0.293 |
| HbA1c-ARV | 0.5 (0.4–0.6) | 0.5 (0.3–0.7) | 0.953 | 0.5 (0.4–0.6) | 0.5 (0.4–0.6) | 0.578 | 0.4 (0.4–0.6) | 0.5 (0.4–0.7) | 0.410 |
Data are median (interquartile range) or mean ± SD unless otherwise indicated. GA = glycated albumin, FA = fructosamine, SD = standard deviation, adjSD = adjusted standard deviation, CV = coefficient of variation, ARV = average real variability