Table 4 Summary statistics and prevalence data for users and non-users of vitamin supplementation.
From: Vitamin status and cognitive function in a long-term care population
| Â | Vitamin | Supplementation | Â |
|---|---|---|---|
| Â | Users (n = 28) | Non-users (n = 47) | p-value |
Vitamin B 12 (pmol/L) | Â | Â | Â |
   Mean (SD) | 423.6 (191.6) | 229.1 (96.7) | p < 0.0001 |
   ≤221 | 2 (7.1%) | 29 (61.7%) | p < 0.0001 |
Erythrocyte folate (nmol/L) | Â | Â | Â |
   Mean (SD) | 1043.6 (345.8) | 882.9 (371.1) | p < 0.05 |
   <370 | 0 | 1 (2.1%) | n.s. |
Vitamin B 6 (nmol/L) | Â | Â | Â |
   Mean (SD) | 54.6 (25.3) | 54.1 (19.1) | n.s. |
   ≤30 | 2 (7.1%) | 2 (4.3%) | n.s. |
Hcy (μmol/L) |  |  |  |
   Mean (SD) | 12.0 (4.9) | 14.4 (6.7) | p < 0.01 |
   >13.3 | 8 (28.6%) | 23 (48.9%) | n.s. |
Niacin | Â | Â | Â |
   Mean (SD) | 177.7 (79.9) | 151.5 (81.8) | n.s. |
   Niacin Ratio ≤1 | 4 (14.3%) | 16 (34.0%) | n.s. |