Table 2.
Spearman’s rank correlation coefficient of folate intake with the dosage of serum folate in the pretreatment of patients for colorectal adenocarcinoma.
| Serum Folate (ng mL−1) | |||
|---|---|---|---|
| N | Spearman correlation coefficient (rho) | p | |
| Unadjusted DFE diet 1 (μg) | 156 | 0.05 | 0.53 |
| Calibrated DFE diet 1 (μg) | 156 | 0.05 | 0.53 |
| Synthetic folate supplement | 17 | 0.54 | 0.02 * |
| DFE supplement 2 (μg) | 17 | 0.54 | 0.02 * |
| Total unadjusted DFE 3 (μg) | 17 | 0.40 | 0.10 |
| Total calibrated DFE 3 (μg) | 17 | 0.45 | 0.06 |
DFE—Dietary Folate Equivalent; 1 DFE diet = natural folate + 1.7 × (dietetic synthetic folate); 2 DFE supplement = synthetic folate supplement × 2; 3 Total DFE = DFE diet + DFE supplement; * p < 0.05.