Table 2.

Operation data, postoperative complications and mortality.

	Control group (n = 123)	SRA preservation group (n = 84)	F/χ 2	p
Operation time (±S, min)	164.07 ± 22.04	175.66 ± 23.67	0.089	<0.001
Intraoperative blood loss (±S, ml)	48.74 ± 25.87	51.19 ± 27.07	0.972	0.512
Lymph node dissection (±S)	12.36 ± 8.84	11.44 ± 7.06	1.512	0.428
Postoperative exhaust time (±S, day)	2.04 ± 0.89	1.67 ± 0.86	1.482	0.003
Postoperative defecation time (±S, day)	3.11 ± 0.94	2.51 ± 0.78	0.008	<0.001
Morbidity (%)	6 (4.9)	0 (0.0)	2.66	0.103
Anastomotic leakage	4 (3.3)	0 (0.0)	1.33	0.248
Post-operative abdominal bleeding	0 (0.0)	0 (0.0)		NA
Lymphatic leakage	0 (0.0)	0 (0.0)		NA
Postoperative ileus	2 (1.6)	0 (0.0)	0.20	0.265
Reoperation (%)	0 (0.0)	0 (0.0)		NA
Mortality (%)	0 (0.0)	0 (0.0)		NA