Efficacy of the polyglycolic acid sheet for preventing anastomotic leakage in double-stapling technique anastomosis for left-sided colon or rectal cancer surgery: a propensity score-matched study

Table 1 Patients’ characteristics and clinicopathological factors

	Entire cohort			Matched cohort
Factors	The conventional group (n = 313)	The PGA sheet group (n = 43)	p-Value	The conventional group (n = 43)	The PGA sheet group (n = 43)	p-Value
Age (years)
Median (range)	69 (31–92)	70 (42–88)	0.904	69 (31–90)	70 (42–88)	0.691
Sex, n
Male	192	24		17	24
Female	191	19	0.508	26	19	0.827
Body mass index (kg/m²)
Median (range)	22.63 (14.55–40.88)	20.89 (14.84–32.55)	0.016	21.44 (14.55–31.31)	20.89 (14.84–32.55)	0.839
ASA physical status, n
1, 2	267	33		37	33
3	44	10		6	10
4	2	0	0.161	0	0	0.407
Diabetes mellitus, n
Negative	249	38		38	38
Positive	64	5	0.218	5	6	> 0.999
Tumor location, n
Descending colon	1	1		0	1
Sigmoid colon	147	25		21	25
Rs	68	6		7	6
Ra	54	8		10	8
Rb	43	3	0.187	5	3	0.709
Tumor diameter (cm)
Median (range)	3.5 (0–11.0)	3.8 (0–12.0)	0.629	3.5 (0-7.5)	3.8 (0–12.0)	0.704
Tumor depth, n
Tis	5	1		0	1
T1	50	4		7	4
T2	5	5		7	5
T3	151	26		20	26
T4	39	4		5	4
After endoscopic resection	22	3		4	3
Complete response after NACRT	1	0	0.807	0	0	0.671
Neoadjuvant treatment, n
None	301	43		42	43
Chemoradiotherapy	12	0	0.374	1	0	> 0.999

PGA, polyglycolic acid; ASA, American Society of Anesthesiologists; NACRT, neoadjuvant chemoradiotherapy; Ra, tumor above the peritoneal reflection; Rb, tumor at or below the peritoneal reflection

ISSN: 1471-2482