Figure 7From: The importance of iron in long-term survival of maintenance hemodialysis patients treated with epoetin-alfa and intravenous iron: analysis of 9.5 years of prospectively collected data Estimated proportion of patients surviving by five levels of serum ferritin. The number of patients who received various levels of IV iron over the time at risk in each of the five serum ferritin levels is shown in Table 5.Back to article page