Table 2. HbA1c Levels According to FHD.
| FHD | Non-diabetes | Diabetes | ||||||
|---|---|---|---|---|---|---|---|---|
| n (%) | HbA1c* | p (p-trend) | n (%) | HbA1c* | p (p-trend) | |||
| <5.9% | ≥5.9% | <7.9% | ≥7.9% | |||||
| Total | 7031 (100.0) | 81.4 | 18.6 | 1918 (100.0) | 79.3 | 20.7 | ||
| Presence of any FHD | 0.047 | <0.001 | ||||||
| Negative | 6046 (86.0) | 81.7 | 18.3 | 1366 (71.2) | 82.1 | 17.9 | ||
| Positive | 985 (14.0) | 79.1 | 20.9 | 552 (28.8) | 72.3 | 27.7 | ||
| Frequency of FHD | 0.132 (0.068) | <0.001 (<0.001) | ||||||
| None | 6046 (86.0) | 81.7 | 18.3 | 1366 (71.2) | 82.1 | 17.9 | ||
| One | 903 (12.8) | 79.0 | 21.0 | 467 (24.4) | 73.2 | 26.8 | ||
| ≥Two | 82 (1.2) | 80.5 | 19.5 | 85 (4.4) | 67.1 | 32.9 | ||
| Presence of individual FHD | ||||||||
| fHD | 0.797 | 0.379 | ||||||
| Absence | 6896 (98.1) | 81.4 | 18.6 | 1841 (96.0) | 79.5 | 20.5 | ||
| Presence | 135 (1.9) | 82.2 | 17.8 | 77 (4.0) | 75.3 | 24.7 | ||
| mHD | 0.889 | <0.001 | ||||||
| Absence | 6785 (96.5) | 81.4 | 18.6 | 1766 (92.1) | 80.5 | 19.5 | ||
| Presence | 246 (3.5) | 81.7 | 18.3 | 152 (7.9) | 65.1 | 34.9 | ||
| sHD | 0.012 | 0.001 | ||||||
| Absence | 6341 (90.2) | 81.8 | 18.2 | 1500 (78.2) | 81.0 | 19.0 | ||
| Presence | 690 (9.8) | 77.8 | 22.2 | 418 (21.8) | 73.2 | 26.8 | ||
HbA1c, hemoglobin A1c; FHD, family history of diabetes; fHD, history of diabetes in father; mHD, history of diabetes in mother; sHD, history of diabetes in siblings.
*Row percentile.