Value of brief hematological characteristics in differentiating carcinoembryonic-antigen-negative colorectal cancer from benign colorectal diseases

Figure 3 Receiver operating characteristic evaluation of the value of hematological parameters for diagnosis of patients with carcinoembryonic-antigen-negative colorectal cancer. A: Receiver operating characteristic (ROC) curve analysis of carcinoembryonic antigen (CEA), hemoglobin-to-red blood cell distribution width ratio (HRR), lymphocyte-to-red blood cell distribution width ratio (LRR), and platelet-to-lymphocyte ratio (PLR); B: ROC curve analysis of HRR + CEA, HRR + PLR, LRR + CEA, PLR + CEA, and HRR + PLR + LRR + CEA. HRR: Hemoglobin-to-red blood cell distribution width ratio; LRR: Lymphocyte-to-red blood cell distribution width ratio; PLR: Platelet-to-lymphocyte ratio; CEA: Carcinoembryonic antigen.