Table 1.

Definition of outcomes

Pouch failure	Pouch excision or a nonfunctioning pouch at 12 months after IPAA
Pelvic sepsis	Pelvic abscess, anastomotic leakage or dehiscence, pelvic/perineal wound infection
Fistula	Any pouch-related fistula
Stricture	Anastomotic fibrosis necessitating dilatation
Mild fecal incontinence	Soiling, spotting in underwear
Severe fecal incontinence	Regularly severe leakage or fecal loss passive fecal incontinence