Table 5: Between-group comparisons of plasma concentrations of unmetabolized folic acid.

Plasma folic acid (nmol/L)
1.1 mg5 mg

Week 04.76 (ND–41.90)3.67 (ND–22.71)0.060.95
Week 67.23 (1.79–81.92)6.05 (0.18–28.98)1.260.21
Week 128.34 (2.42–86.43)8.02 (0.97–24.31)−0.110.91
Week 303.13 (ND–29.66)4.35 (ND–16.45)0.060.95

a value, as determined by Wilcoxon-Mann-Whitney test.