Table 1.

Demographic data about the patients included in this study

Characteristic	ADM (n = 45)	ERAF (n = 45)	P value
Gender (male/female)	24/21	25/20	NS
Age (SD, range)	18-59 (44.8)	17-61 (45.1)	NS
Smoking history, n (%)	14 (31)	11 (24)	NS
Course of disease (SD, range, mo)	3.0-7.1 (4.6)	2.8-6.9 (5.1)	NS
Type of fistula (intrasphincteric/transsphincteric)	19/26	17/28	NS
Median follow-up time	5.7 (5.1-6.4)	6.1 (5.9-6.5)	NS

ADM: Acellular dermal matrix; ERAF: Endorectal advancement flap; NS: Not significant.