Table 4.

Risk factors for overall complications after CSEMS deployment (univariate analysis).

	Complication (+) (n = 13)	Complication (−) (n = 66)	P value	OR (95% CI)
Female gender	7	32	0.770	1.2 (0.38–4.1)
Age (<60 years)	4	4	0.022	6.9 (1.5–33)
Nonpancreatic cancer	4	2	0.006	14 (2.3–89)
Periampullary diverticulum	3	8	0.377	2.2 (0.49–9.6)
Non-EST	6	35	0.765	0.76 (0.23–2.5)
Fully covered type stent	5	17	0.499	1.8 (0.52–6.3)
Pancreatic duct injection	3	17	1.000	0.87 (0.21–3.5)
Biopsy of the bile duct	0	4	1.000	—
Cytology of bile juice	1	5	1.000	1.0 (0.11–9.5)
Intraductal ultrasonography	1	2	0.421	2.7 (0.22–32)
Procedure time (>45 minutes)	2	8	0.666	1.3 (0.2–7.1)

CSEMS: covered self-expandable metal stent. EST: endoscopic sphincterotomy.