Fig. 3From: Effect of oral and intravenous iron therapy on hemoglobin levels in hemodialysis patients according to serum ferritin level a Ratio of dose of ESAs per 4 weeks/Hb during the study period (0W: reference). Data are expressed as mean ± SE. b Ratio of dose of ESAs per 4 weeks/Hb during the study period in patients with serum ferritin levels <100 ng/ml at baseline (0W: reference). Data are expressed as mean ± SE. c Ratio of dose of ESAs per 4 weeks/Hb during the study period in patients with serum ferritin levels 100~199 ng/ml at baseline (0W: reference). Data are expressed as mean ± SEBack to article page