Table 4.

Patient background

Items		TCD-11091		Control		P value
		N	% (n/N)	N	% (n/N)
Total patients		61		61
Sex (male)		51	83.6%	47	77.0%	0.362a
Age		60.5 ± 9.9		62.3 ± 10.2		0.341c
BMI		23.05 ± 3.25		22.70 ± 3.26		0.556c
TNM stage	0	0	0.0%	0	0.0%	0.946b
	I	14	23.0%	10	16.4%
	IIA	13	21.3%	22	36.1%
	IIB	0	0.0%	0	0.0%
	IIIA	4	6.6%	2	3.3%
	IIIB	18	29.5%	13	21.3%
	IIIC	11	18.0%	12	19.7%
	IV	0	0.0%	1	1.6%
History of intestinal disease		7	11.5%	9	14.8%	0.592a
History of surgery		8	13.1%	9	14.8%	0.794a
Complications		49	80.3%	54	88.5%	0.212a
	Hypertension	26	42.6%	22	36.1%
	Hyperlipidemia	6	9.8%	9	14.8%
	Diabetes mellitus	11	18.0%	11	18.0%
	Hyperuricemia	5	8.2%	6	9.8%
	Others	44	72.1%	39	63.9%
Length of midline incision (cm)		20.22 ± 5.51		19.71 ± 4.78		0.605c
Intraoperative blood loss of primary surgery (ml)		552.3 ± 503.6		736.7 ± 838.0		0.162c
Operative time of primary surgery (min)		438.8 ± 119.4		451.5 ± 109.1		0.560c
Neoadjuvant chemotherapy		8	13.1%	3	4.9%	0.114a

^a χ ² test

^bWilcoxon rank sum test

^c T test