Table 3.

Multi-dimensional analysis for StBO

characteristics	Multivariate analysis
	Regression coefficient	OR (95%CI)	p-value
Pain duration(≤ 3 days)	1.328	3.775(1.429–9.973)	0.007
Rebound tenderness	1.649	5.201(2.241–12.069)	< 0.001
Low-to-absent bowel sounds	1.611	5.006(1.244–20.151)	0.023
Low potassium	1.307	3.696(1.184–11.533)	0.024
Low sodium	1.323	3.753(1.483–9.498)	0.005
High BUN	1.470	4.349(1.793–10.552)	0.001
High radiological score	2.422	11.264(4.086–31.047)	< 0.001

The bold indicates that the parameters have statistical difference (p < 0.05)

BUN blood urea nitrogen, OR odds ratio, CI confidence interval