Significance of preoperative blood tests in the prognosis of colorectal cancer: A prospective, multicenter study from Hungary.

NLR was proved to be an independent prognostic factor for DFS in patients with non-metastatic colon cancer. NLR might help to recognize the high-risk patients between patients with the same tumor-node-metastasis stage and could help with the decision on adjuvant chemotherapy. Since the biomarkers in preoperative blood tests are habitually evaluated, NLR could be an inexpensive prognostic marker that can be easily assessed in clinical practice.