Table 2

Comparison of the labelling index (LI) in the two treatment groups over the four time points (supplementation was given only for the first 12 weeks)

Time (weeks)
Group041218
*p<0.044 (paired t test), †p=0.03 (Wilcoxon's signed rank test).
Values are mean patient LI (95% confidence limits).
There was a decrease in LI after four weeks of supplementation with folic acid but this only reached statistical significance after 12 weeks.
Controls9.3 (6.7, 12.3)9.0 (7.7, 10.5)9.6 (8.9, 10.4)9.1 (8.5, 9.8)
Folate9.1 (7.8, 10.3)8.3 (6.2, 10.5)7.4 (5.3, 9.6)*†8.0 (6.7, 9.5)