Biliary obstruction and pancreatitis after duodenal stent placement in the descending duodenum: a retrospective study

Table 2 Results of the univariate and multivariate analyses of risk factors for biliary obstruction and/or pancreatitis after DSP in the descending duodenum

	n	Univariate analysis		Multivariate analysis
	n	OR (95% CI)	P-value	OR (95% CI)	P-value
Age (years)
≤ 69	40	2.13 (0.51–8.78)	0.30
> 69	25	1
Sex
Female	27	3.58 (0.95–13.50)	0.06	9.16 (1.43–58.60)	0.02*
Male	38	1		1
Tumor diagnosis
Pancreatic cancer	37	0.71 (0.20–2.49)	0.59
Other	28	1
Extrahepatic bile duct dilatation
Yes	21	1.65 (0.46–5.99)	0.45
No	44	1
Pancreatic duct dilation
No	27	2.31 (0.65–8.27)	0.20
Yes	38	1
Biliary stents
No	31	7.62 (1.52–38.30)	0.01*	12.90 (1.84–90.20)	0.01*
Yes	34	1		1
Tumor invasion to the major duodenal papilla
Yes	42	7.81 (0.94–64.90)	0.06	25.80 (1.96–340.00)	0.01*
No	23	1		1
Position of duodenum covered by duodenal stents
1st-3rd	16	4.30 (1.14–16.20)	0.03*	2.50 (0.40–15.70)	0.33
Others	49			1
Types of duodenal stent
Covered	6	0.87 (0.09–8.24)	0.91
Uncovered	59	1

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