Enzyme linked immuno-absorbent assay determined preoperative and postoperative monocyte chemotactic protein-1 levels of colorectal cancer patients. Monocyte chemotactic protein-1 (MCP-1) levels are expressed as expressed as median and 75% quartile range [PreOp vs POD 1 (n = 102), PreOp vs POD 3 (n = 100), PreOp vs POD 7-13 (n = 61), PreOp vs POD 14 -20 (n = 27), PreOp vs POD 21-27 (n = 28), bP < 0.001]. PreOp: Preoperative; POD: Postoperative day.