Table 2. Studied variables in vitamin and placebo groups, before and after the intervention.
| Variables | Placebo | Vitamin | p value | |||||
|---|---|---|---|---|---|---|---|---|
| Baseline | After intervention | Baseline | After intervention | p∥ | p¶ | p** | p†† | |
| Homocysteine (µmol/L) | 12.48 ± 2.88 | 12.23 ± 2.19 | 13.94 ± 2.45 | 11.45 ± 1.44 | 0.059* | 0.294† | 0.001† | 0.146* |
| Hemoglobin (g/dL) | 11.16 ± 1.67 | 11.12 ± 0.95 | 11.24 ± 1.54 | 13.12 ± 1.05 | 0.861* | 0.814† | 0.001† | 0.001* |
| MCV (pg/cell) | 95.76 ± 6.90 | 94.47 ± 4.62 | 95.50 ± 6.65 | 89.64 ± 4.24 | 0.734‡ | 0.187§ | 0.001§ | 0.001‡ |
| MCHC (g/dL) | 31.68 ± 2.46 | 31.73 ± 1.24 | 31.83 ± 2.05 | 31.75 ± 0.91 | 0.814* | 0.910† | 0.807† | 0.959* |
| Systolic BP (mmHg) | 112.00 ± 12.42 | 110.60 ± 12.52 | 111.80 ± 11.35 | 110.00 ± 9.01 | 0.961‡ | 0.142§ | 0.219§ | 0.819‡ |
| Diastolic BP (mmHg) | 74.20 ± 4.49 | 75.40 ± 4.06 | 74.40 ± 4.40 | 74.00 ± 3.82 | 0.859‡ | 0.360§ | 0.685§ | 0.278‡ |
| PCS | 44.12 ± 21.68 | 42.70 ± 22.37 | 40.38 ± 15.07 | 59.21 ± 12.32 | 0.482* | 0.249† | 0.001† | 0.314* |
| MCS | 37.46 ± 19.01 | 50.98 ± 21.64 | 29.58 ± 15.99 | 51.68 ± 18.22 | 0.720* | 0.001† | 0.001† | 0.001* |
Data are shown as mean ± standard deviation.
MCV, mean corpuscular volume; MCHC, mean corpuscular hemoglobin concentration; PCS, Physical Health Composite Score; MCS, Mental Health Composite Score.
*Independent t-test; †paired t-test; ‡Mann-Whitney test; §Wilcoxon test. The p value comparison of the measured; ∥variables in the vitamin and placebo groups at the baseline, ¶variables in the placebo group before and after the intervention, **variables in the vitamin group before and after the intervention, and ††variables in the vitamin and placebo groups after the intervention.