GPX1 and anemia: Elevation of GPX1 levels were noted in older patients >55 years (p < 0.0001), female patients (p < 0.0001), non-epithelioid histopathological type (p < 0.0001), high grade tumors (p < 0.0001), large tumors (p < 0.0001), lymph node involvement (p < 0.0001), advanced stage II clinical stage (p < 0.0001), patients with anemia (p < 0.0001), patients with increased platelet counts, white blood cells and LDH levels (p < 0.0001).