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

Table 4 Comparison of perioperative pain scores between the two groups [median (P25, P75)]

Item	PTSS-positive group (n = 89)	PTSS-negative group (n = 222)	Z value	P value
24-hour postoperative pain at rest	6 (5, 7)	5 (4, 6)	-5.824	< 0.001
24-hour postoperative pain during activity	7 (6, 8)	6 (5, 7)	-6.147	< 0.001
48-hour postoperative pain at rest	5 (4, 6)	4 (3, 5)	-5.392	< 0.001
48-hour postoperative pain during activity	6 (5, 7)	5 (4, 6)	-5.678	< 0.001
72-hour postoperative pain at rest	4 (3, 5)	3 (2, 4)	-5.156	< 0.001
72-hour postoperative pain during activity	5 (4, 6)	4 (3, 5)	-5.431	< 0.001

PTSS: Post-traumatic stress symptoms.