Fig. 1From: Intravenous iron and erythropoietin therapy for postoperative anemia among orthopedic surgery patientsChanges in hemoglobin concentration following IV iron monotherapy (Group 1, A), combined IV iron and rHuEPO therapy (Group 2, B), and placebo (Control, C). The association between the amount of intraoperative blood loss and the drop in Hb concentration on POD1 D). Changes in serum erythropoietin following IV iron monotherapy (Group 1, E), combined IV iron and rHuEPO therapy (Group 2, F), and placebo (Control, G). The association between serum erythropoietin and Hb concentration (H). Changes in reticulocyte count following IV iron monotherapy (Group 1, I), combined IV iron and rHuEPO therapy (Group 2, J), and placebo (Control, K). Δ Hb was defined as the difference in Hb concentration between baseline and POD1. Δ EPO and Δ Hb were defined as the difference in erythropoietin and Hb, respectively, between baseline and POD3Back to article page