CXCL8 and neoplasm: In the total OC group, the AUC of CXCL-8 (0.8315; p < 0.001) was lower than the AUC of CRP (0.9092; p < 0.001), but higher in comparison with the AUCs of the classical tumor markers (CEA = 0.5238; p = 0.719 and SCC-Ag = 0.8250; p < 0.001) in the diagnosis of OC (Fig. 3).