Fig. 3From: Safety of early pelvic drain removal in colorectal surgery based on drainage quantityChanges in median daily drainage quantity by the presence of SSI. The drainage quantity decreased significantly from POD 2 to 3 in the SSI group (a) and from POD 1 to 2 in the non-SSI group (b). POD, postoperative day; SSI, surgical site infection. *P < 0.05, **P < 0.01, n.s., not significantBack to article page