Comparison of different anastomosis methods in laparoscopically assisted left hemicolectomy for colon cancer

Table 2 Comparison of the intraoperative and postoperative conditions, n (%)/mean ± SD

Parameter	Group ESA	Group SSA	t	P value
n = 334	146 (43.7)	188 (56.3)
Operation time (minute)	197.1 ± 57.7	218.6 ± 67.5	4.298	0.039
Length of bowel resection (cm)	20.1 ± 5.4	19.8 ± 5.5	-0.331	0.741
Blood loss (mL)	73.1 ± 35.9	70.5 ± 30.3	-0.703	0.482
Postoperative 48 hours pain score	4.0 ± 1.2	4.1 ± 1.2	0.213	0.832
Postoperative first exhaust time (day)	3.1 ± 0.7	3.2 ± 0.8	0.841	0.401
Postoperative hospital stay (day)	10.8 ± 6.0	11.3 ± 5.0	-0.64	0.523
Lymph node dissection	22.0 ± 11.5	24.5 ± 12.6	1.82	0.070

ESA: End-to-side anastomosis; SSA: Side-to-side anastomosis.