Figure 5

Multivariate Cox regression analysis of high-RDW vs. normal-RDW mortality by subgroup. The adjusted covariates were age, sex, estimated glomerular filtration rate, hemoglobin level, history of diabetes mellitus, history of hypertension, serum albumin level, urinary albumin grade, history of red blood cell transfusion, and use of erythropoietin-stimulating agents. GFR glomerular filtration rate, RDW red blood cell distribution width.