Table 2.
Results of serum levels of holotranscobalamin, methylmalonic acid, vitamin B12, and vitamin D (25-OH-vitamin D2/D3) before and after intervention. SD = Standard deviation; p-value (baselines) indicates comparison of values at baseline (results from t-test or MWU-test). p-value (end) indicates comparisons at the end of the study adjusted for baseline values (results from ANCOVA). p-value (baseline-to-end) indicates comparisons of changes from baseline to end of study (results from mixed ANOVA). Statistically significant results are bolded.
| Baseline | End | p-Value (Baseline-to-End) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Vegan ± SD (n = 26) | Meat-Rich ± SD (n = 27) | p-Value (Baselines) | Vegan ± SD (n = 26) | Meat-Rich ± SD (n = 27) | p-Value (End) | Time | Diet | Time × Diet | |
| Holotranscobalamin (pmol/L) | 67.3 ± 23.5 | 69.7 ± 29.7 | 0.901 | 43.6 ± 20.0 | 64.4 ± 28.7 | <0.001 | <0.001 | 0.098 | <0.001 |
| Methylmalonic acid (nmol/L) | 214.5 ± 129.6 | 220.0 ± 121.0 | 0.755 | 277.8 ± 330.0 | 213.1 ± 182.2 | 0.090 | 0.253 | 0.573 | 0.158 |
| Serum vitamin B12 (ng/mL) | 362.8 ± 110.9 | 391.2 ± 159.2 | 0.510 | 296.1 ± 94.1 | 391.8 ± 143.0 | <0.001 | <0.001 | 0.085 | <0.001 |
| 25-OH-vitamin D2/D3 (ng/mL) | 32.9 ± 15.6 | 29.6 ± 13.9 | 0.439 | 34.2 ± 15.3 | 31.4 ± 11.3 | 0.903 | 0.039 | 0.427 | 0.829 |