New anti-mesenteric delta-shaped stapled anastomosis: Technical report with short-term postoperative outcomes in patients with Crohn’s disease

Table 3 Postoperative outcomes between the delta-shaped stapled anastomosis and conventional side-to-side stapled anastomosis groups

Variables	Delta-shaped	Conventional	Before IPTW	After IPTW
	n = 92	n = 83	P value	P value
Hospital stay after surgery, days, mean ± SD	5.67 ± 1.53	7.39 ± 3.69	< 0.001a	< 0.001a
Operation time, minutes, mean ± SD	107.23 ± 25.16	112.54 ± 28.48	0.192	0.480
Intraoperative blood loss, n (%)			0.075	0.031a
< 10 mL	64 (69.6)	44 (53.0)
10-200 mL	26 (28.3)	35 (42.2)
> 200 mL	2 (2.2)	4 (4.8)
Transfusion after surgery, n (%)			0.104	0.054
Yes	8 (8.7)	14 (16.9)
No	84 (91.3)	119 (82.1)
Number of pack RBC after surgery, mean ± SD	0.16 ± 0.72	0.35 ± 0.88	0.123	0.175
Postoperative complications, n (%)	15 (16.3)	27 (32.5)	0.014a	0.002a
Number of complication, n (%)			0.037a	0.002a
0	78 (84.8)	58 (69.9)
1	13 (14.1)	20 (24.1)
2	1 (1.1)	5 (6.0)
Clavien-Dindo classification, n (%)			0.021a	0.006a
II	11 (12.0)	21 (25.3)
IIIa	4 (4.3)	3 (3.6)
IIIb	0 (0.0)	3 (3.6)
Infectious complications, n (%)	10 (10.9)	13 (15.7)
Wound	5 (5.4)	5 (6.0)	> 0.999	0.964
Intra-abdominal abscess	4 (4.3)	4 (4.8)	> 0.999	0.603
Anastomotic leakage	0 (0.0)	1 (1.2)	0.474	0.255
Other infectious complication1	1 (1.1)	2 (2.4)	0.604	0.432
Non-infectious complications, n (%)
Ileus	4 (4.3)	12 (14.5)	0.033a	0.022a
Bleeding	1 (1.1)	3 (3.6)	0.347	0.031a
Other2	0 (0)	1 (1.2)	0.474	0.314
Surgical recurrence, n (%)			0.224	0.137
Yes	0 (0)	2 (2.4)

^aP < 0.05.

¹Other infectious complication includes Clostrium difficile infection and urinary tract infection.

²Other complication includes portal vein thromobosis after surgery.

IPTW: Inverse-probability-of-treatment weighted.