TF and colorectal carcinoma: Among the female subjects, CRC patients exhibited significantly lower serum levels of iron (35.00 vs. 91.5 μg/dL, p < 0.0001), transferrin (216.45 vs. 268.00 mg/dL, p < 0.001), and % transferrin saturation (34.89% vs. 12.32%, p < 0.001) compared with healthy controls.