Incidence and influencing factors of post-traumatic stress symptoms in patients after surgery for acute intestinal obstruction

Table 2 Comparison of disease- and surgery-related data between the two groups, n (%)

Item	PTSS-positive group (n = 89)	PTSS-negative group (n = 222)	Test statistic	P value
Etiology of intestinal obstruction			χ2 = 4.216	0.239
Adhesive	42 (47.2)	128 (57.7)
Incarcerated hernia	28 (31.5)	58 (26.1)
Neoplastic	14 (15.7)	26 (11.7)
Other	5 (5.6)	10 (4.5)
Obstruction site			χ2 = 2.487	0.288
High small intestine	23 (25.8)	48 (21.6)
Low small intestine	38 (42.7)	112 (50.5)
Colon	28 (31.5)	62 (27.9)
Obstruction type			χ2 = 8.924	0.003
Simple	51 (57.3)	168 (75.7)
Strangulated	38 (42.7)	54 (24.3)
Time from onset to surgery [hours, median (P25, P75)]	18 (12, 28)	14 (10, 22)	Z = -2.513	0.012
Surgical approach			χ2 = 18.647	< 0.001
Laparoscopic	24 (27.0)	126 (56.8)
Open	65 (73.0)	96 (43.2)
Surgical duration [minutes, median (P25, P75)]	165 (125, 215)	140 (105, 185)	Z = -2.748	0.006
Intraoperative blood loss [mL, median (P25, P75)]	120 (80, 200)	100 (60, 150)	Z = -2.437	0.015
Intestinal resection			χ2 = 11.324	0.001
Yes	46 (51.7)	74 (33.3)
No	43 (48.3)	148 (66.7)
Stoma			χ2 = 22.186	< 0.001
Yes	35 (39.3)	38 (17.1)
No	54 (60.7)	184 (82.9)

PTSS: Post-traumatic stress symptoms.