The median levels of CRP increased with increasing stage, and we also noted significant differences between the CRP level and cancer stage (the median level of CRP in stage I 0.06 ± 0.29 mg/dl, stage II 0.07 ± 0.15 mg/dl, stage III 0.12 ± 0.30 mg/dl and stage IV 0.39 ± 0.50 mg/dl; P < 0.001). Here, CRP is linked to cancer.