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Kaplan-Meier analysis of overall survival (OS) according to SSI in patients with CRC. (A) OS of patients with simple incisional SSI (P=0.308); (B) OS of patients with simple organ/space SSI (P=0.695); (C) OS of patients with incisional and organ/space SSI (P<0.001); (D) Compared with simple incisional SSI and simple organ/space SSI, only incisional and organ/space SSI had a significant negative effect on OS.
