Univariable Cox analysis showed that age, history of stroke, RDW, lower albumin, AST, CEA, CA19‐9, ΔRDW, ASA, the type of operation, TNM stage, pathological type, differentiation, postoperative adjuvant chemotherapy and neutrophil count were prognostic factors of CRC patients (all p < 0.05, Table 2). Here, ALB is linked to stroke disorder.