Table 2.

Summary of the surgical procedures n (%)

Surgical procedure	Cases
Ileal resection	420 (22.60)
Colonic resection	451 (24.27)
Total proctocolectomy	5 (0.27)
Partial colectomy	446 (24.00)
Right hemicolectomy	229 (12.33)
Ileocecal resection	99 (5.33)
Left hemicolectomy	45 (2.42)
Rectal resection	11 (0.59)
Transverse colonic resection	7 (0.38)
Other colonic resection (unclassified)	55 (2.96)
Ileocolonic resection	190 (10.23)
Other unclassified bowel resection	221 (11.89)
Upper gastrointestinal resection	10 (0.54)
Operation for perianal disease	90 (4.84)
Ileostomy or colostomy	76 (4.09)
Operation for fistulae or perforations	56 (3.01)
Drainage of an abdominal abscess	11 (0.59)
Abdominal exploration	39 (2.10)
Small intestinal colon short circuit	24 (1.29)
Stricturoplasty	9 (0.48)
Intestinal adhesion release	9 (0.48)
Operation for a complicated tumor	4 (0.22)
Other or unclassified surgery	223 (12.00)

Although rare, some patients underwent more than one surgical procedure simultaneously.