The Use of Metformin and Postoperative Insulin Pump Were Predictive Factors for Outcomes of Diabetic Colorectal Cancer Patients after Surgery.

Diabetic CRC patients who used metformin had a lower risk of postoperative complications. However, there was no difference from patients not using metformin in terms of survival. Furthermore, patients receiving postoperative insulin pump had more postoperative complications and worse survival in all TNM stages.