Table 6.

Surgical Recurrence Outcome According to Risk Factors

Variable	Low risk group (0 or 1 risk factor*)	High risk group (2 or 3 risk factors)	p-value
No.	203 (69.5)	89 (30.5)
Follow-up duration, mo	44.0 (23.0–71.0)	50.0 (26.0–77.5)	0.267
Surgical recurrence	25 (12.3)	25 (28.1)	0.001
Time to surgical recurrence, mo	103.4 (96.7–111.3)	84.3 (73.3–95.3)	0.001

Data are presented as number (%) or median (interquartile range).

^*The risk factors are defined as an age at surgery of less than 16, the presence of perianal disease at surgery, and colonic or ileocolonic location at surgery.