2.3. Inclusion and exclusion criteria
small bowel stoma, fistula, anastomotic fistula, perianal abscess
PERIANAL ABSCESS
Inclusion criteria were as follows: (1) confirmed diagnosis of CD, (2) initial bowel resection, and (3) postoperative follow-up period of 90 days. Exclusion criteria were: (1) having only undergone strictureplasty, (2) having only undergone small bowel stoma or colostomy, (3) having only undergone perianal abscess or anal fistula surgery, (4) dying during the perioperative period, and (5) having an anastomotic fistula at postoperative follow-up.