Colonic J-pouch anal anastomosis after ultralow anterior resection with upper sphincter excision for low-lying rectal cancer

Table 1 Clinicopathologic characteristics of patients.

	Nonpouch (n = 26)	J-pouch (n = 24)
Sex (M:F)	18:8	11:03
Age (years, median)	59 (32-76)	57 (37-68)
Tumor size (cm, median)	4.9 (2.5-7.5)	3.2 (2.1-8.0)
Distance of tumor	4.0 (3.5-4.5)	3.9 (3.5-4.5)
from anal verge (cm, mean)
Distal resection	0.7 (0.3-1.5)	0.8 (0.3-1.4)
margin (cm, median)1
Number of ileostomies (%)	26 (100)	24 (100)
Time of ileostomy	7 (3-16)	7 (3-18)
takedown (mo, median)
Differentiation	3:20:1:2	5:17:2:0
(WD:MD:PD:mucinous)
pT stage (T1:T2:T3)	3:7:16	2:08:14
pN stage (N0:N1:N2)	14:8:4	10:11:3
Postoperative radiotherapy (%)	17 (65)	12 (50)
Complications (%)	5 (19.2)	3 (12.5)
Recurrences	4 (15.4)	2 (8.3)
	Local recurrence (2)	Local recurrence (2)
	Liver (1), lung (1)

All probability values between nonpouch and pouch subgroups are >0.05.

¹The length of the distal resection margin did not include the portion in the EEA stapler.