Comparison of modified gunsight suture technique and traditional interrupted suture in enterostomy closure

Table 1 General information

Group	Gunsight suture	Traditional suture	Statistical quantity	P value
Case number	135	135	-	-
Male (%)	86 (63.7)	92 (68.1)	χ2 = 0.59	0.440
Age in yr (IQR)	62 (52, 68)	60 (52, 68)	Z = -0.97	0.332
BMI (IQR)	23.83 (21.60, 25.95)	23.12 (20.94, 25.06)	Z = -1.377	0.169
DM (%)	17 (12.6)	23 (17.0)	χ2 = 1.06	0.300
Length of time between two surgeries, d (IQR)	132 (105, 184)	134 (109, 181)	Z = -0.489	0.625

BMI: Body mass index [a commonly used index to assess the relationship between weight and height, usually expressed in units of kilograms per square meter (kg/m²)]; DM: Diabetes mellitus (a chronic metabolic disease characterized by prolonged high blood sugar levels); IQR: Interquartile range [a statistical measure used to describe the spread of a dataset, it represents the span of the middle 50% of the data and is calculated as the difference between the first quartile (Q1) and the third quartile (Q3)].

Table 2 Patient observation indicators

Group		Gunsight suture (IQR)	Traditional suture (IQR)	Statistical quantity	P value
SII (postoperative/preoperative)		3.24 (2.16, 4.78)	3.14 (2.10, 5.47)	Z = -0.592	0.554
Red blood cell (postoperative/preoperative)		0.90 (0.84, 0.95)	0.91 (0.87, 9.96)	Z = -1.445	0.148
Haemoglobin (postoperative/postoperative)		0.91 (0.85, 0.97)	0.92 (0.88, 0.96)	Z = -1.231	0.218
SSI (%)		2 (1.4)	10 (7.4)	χ2 = -5.580	0.018
Postoperative intestinal exhaust time (d)		3 (2, 3)	3 (2, 3)	Z = -1.171	0.242
Total cost of hospitalization (Yuan)		33569 (30545, 36757)	32782 (29134, 36199)	Z = -1.199	0.230
Cost of surgery (Yuan)		4840 (4330, 5138)	4980 (4726, 5221)	Z = -2.745	0.006
Number of dressing changes for surgical incision		2 (1, 3)	4 (3, 6)	Z = -2.460	< 0.001
Operation time		80 (70, 90)	80 (70, 85)	Z = -1.210	0.220
Early postoperative pain score (NRS)	DAY1	3 (3, 3)	3 (3, 3)	Z = -1.145	0.252
	DAY2	2 (2, 2)	2 (2, 2)	Z = -0.044	0.965
	DAY3	2.0 (1.5, 2.0)	1.5 (1.5, 2.0)	Z = -0.603	0.547
Early postoperative body temperature (°C)	DAY1	36.7 (36.4, 36.9)	36.7 (36.4, 36.9)	Z = -0.476	0.634
	DAY2	37.4 (37.1, 37.9)	37.6 (37.1, 38.1)	Z = -1.769	0.077
	DAY3	37.1 (36.9, 37.4)	37.20 (36.85, 37.50)	Z = -1.385	0.166
	DAY4	36.9 (36.7, 37.1)	36.9 (36.7, 37.3)	Z = -1.315	0.189
Postoperative hospital stay (d)		5 (4, 7)	7 (6, 8)	Z = -5.181	< 0.001

SII: Systemic immune inflammation index (a composite index based on peripheral blood neutrophil, lymphocyte, and platelet counts, used to reflect the systemic inflammatory response in patients with various diseases); SSI: Surgical site infection (an infection that occurs after surgery in the part of the body where the surgery took place); Postoperative Pain Score (NRS): Numeric Rating Scale (a commonly used tool to assess the intensity of postoperative pain. It consists of a scale from 0 to 10, where 0 represents no pain and 10 represents the worst possible pain).