Comparison of crude glycemic marker levels by diagnosed diabetes status and race, the Coronary Artery Risk Development in Young Adults study 2005–2006
| Diagnosed diabetes | No diagnosed diabetes | |||||
|---|---|---|---|---|---|---|
| Glycemic marker | African-American (N=96) | White (N=51) | p Value* | African-American (N=1100) | White (N=1445) | p Value* |
| Fasting glucose (mg/dL) | ||||||
| Mean±SD | 151.2±70.2 | 155.6±75.3 | 0.724 | 96.5±17.7 | 95.8±12.9 | 0.274 |
| Median (IQR) | 130.2 (104.8–175.9) | 132.6 (103.4–181.3) | 94.6 (87.8–101.4) | 94.6 (89.8–100.5) | ||
| A1c (%) | ||||||
| Mean±SD | 7.5±2.0 | 7.3±2.4 | 0.587 | 5.6±0.7 | 5.3±0.5 | <0.001 |
| Median (IQR) | 7.0 (6.0–8.6) | 6.4 (5.9–7.9) | 5.5 (5.2–5.8) | 5.3 (5.1–5.5) | ||
| Glycated albumin (%) | ||||||
| Mean±SD | 18.4±6.7 | 17.4±6.7 | 0.390 | 13.2±2.0 | 12.6±1.4 | <0.001 |
| Median (IQR) | 16.3 (14.0–22.0) | 14.2 (12.9–19.6) | 13.0 (12.2–13.8) | 12.5 (11.7–13.3) | ||
| Fructosamine (μmol/L) | ||||||
| Mean±SD | 293.3±83.6 | 285.4±86.0 | 0.586 | 229.8±27.6 | 225.7±20.6 | <0.001 |
| Median (IQR) | 270.0 (235.5–339.0) | 256.0 (234.0–301.0) | 228.0 (214.0–241.0) | 225 (213–237) | ||
| 1,5-Anhydroglucitol (μg/mL) | ||||||
| Mean±SD | 10.7±8.1 | 10.5±7.6 | 0.914 | 18.8±6.3 | 18.8±6.0 | 0.979 |
| Median (IQR) | 9.2 (3.2–17.9) | 10.8 (3.6–17.4) | 18.8 (15.0–22.8) | 18.8 (15.0–22.6) | ||
| 2-hour postchallenge glucose† (mg/dL) | ||||||
| Mean±SD | – | – | – | 111.3±40.7 | 102.7±33.2 | <0.001 |
| Median (IQR) | – | – | 103.4 (87.8–123.8) | 97.5 (82.0–115.1) | ||
*p Value for mean comparisons obtained from the t test.
†N=922 for African-American without diagnosed diabetes; N=1242 for white without diagnosed diabetes.