From: The effect of increased frequency of hemodialysis on vitamin C concentrations: an ancillary study of the randomized Frequent Hemodialysis Network (FHN) daily trial
Treatment Group
Baseline
Month 4
Month 12
3× per week
4 / 13 (31%)
3 / 13 (23%)
1 / 13 (8%)
6× per week
6 / 17 (35%)
4 / 17 (24%)