Table 6.
Serum homocysteine, serum vitamin B12, serum folate, and serum vitamin D concentrations.
| Total Sample (n = 235) |
<40 Years Old (n = 96) |
≥40 Years Old (n = 139) |
Reference Values |
|
|---|---|---|---|---|
| Hcy (µmol/L) | 11.9 ± 3.1 | 10.9 ± 2.7 *** | 12.6 ± 3.2 | 4.4–10.8 |
| Vitamin B12 (pg/mL) | 470.7 ± 176.9 | 505.3 ± 182.9 * | 446.7 ± 169.3 | 279.0–996.0 |
| Folates (ng/mL) | 6.9 ± 3.3 | 6.7 ± 3.2 | 7.0 ± 3.4 | 6.0–20.0 |
| 25-Hydroxyvitamin D (ng/mL) | 28.9 ± 8.2 | 28.4 ± 6.7 | 29.4 ± 9.1 | 30.0–100.0 |
Results are expressed as the mean ± standard deviation. * p ≤ 0.05 and *** p ≤ 0.001 indicate significant differences between groups (Student’s t-test).