Figure 1. Overall survival by tertiles of red blood cell distribution width (RDW). The median OS for patients with tertile 1, 2 and 3 was 16.2 (95%CI=6.8-not reached), 10.7 (95%CI=2.0-not reached), and 7.5 (95%CI=1.6-not reached) months (p=0.152), respectively.