In addition, a low expression of p27 predisposed tumors to the right colon [odds ratio (OR) = 0.61, 95%CI = 0.46–0.82, Z = 3.32, p = 0.001] and limited tumor differentiation (OR = 0.56, 95%CI = 0.41–0.77, Z = 3.62, p = 0.000), but had no effect on TNM staging (OR = 0.80, 95%CI = 0.52–1.22, Z = 1.05, p = 0.295), lymph node metastasis (OR = 0.90, 95%CI = 0.25–3.28, Z = 0.16, p = 0.876), and tumor size (OR = 0.94, 95%CI = 0.54–1.65, Z = 0.21, p = 0.835). Here, CDKN1B is linked to neoplasm.