No significant relationships were identified between hsa_circ_101303 and Ki-67, P53 mutation status, or carcinoembryonic antigen (CEA) levels in CRC (P > 0.05), indicating that hsa_circ_101303 might not be directly linked to these specific molecular markers or clinicopathological attributes in CRC. This evidence concerns the gene CEACAM5 and colorectal carcinoma.