Application of a novel small intestine decompression method in patients with intestinal obstruction: A retrospective cohort study

Table 3 Postoperative recovery and follow-up, n (%)

	Cannula group (n = 37)	Control group (n = 33)	Value of statistics	P value
First postoperative flatus (hours) [mean (IQR)]	58 (56, 60)	70 (68, 72)	Z = 7.171	< 0.001
Hospitalization days (days) [mean (IQR)]	9 (8, 11)	14 (13, 15)	Z = 5.971	< 0.001
Surgical site infection			χ² = 4.142	0.042
No	33 (89.2)	23 (69.7)
Yes	4 (10.8)	10 (30.3)
Abdominal infection	0	0	-	-
Readmission			-	0.598
No	36 (97.3)	31 (93.9)
Yes	1 (2.7)	2 (6.1)

IQR: Interquartile range.