Older age, longer procedures and tandem endoscopic-ultrasound as risk factors for post-endoscopic retrograde cholangiopancreatography bacteremia

Table 2 Univariate and multivariate logistic regression

	Univariate logistic regression			Multivariate logistic regression
Variable	Exp (b)	95%CI	P value	Exp (b)	95%CI	P value
Gender (male vs female)	1.057	0.459-2.434	0.444
Age at ERCP (yr)	1.027	0.995-1.060	0.096
Native papilla (Yes vs No)	1.913	0.815-4.487	0.136
Obstructive abdominal malignancy (Yes vs No)	1.464	0.622-3.443	0.382
Naïve obstructive malignancy (Yes vs No)	1.960	0.753-5.104	0.168
Antibiotic prophylaxis (Yes vs No)	0.324	0.075-1.399	0.131	0.224	0.087-1.775	0.224
Appropriateness (indicated, appropriate, not indicated)	1.048	0.514-2.135	0.898
Tandem EUS/ERCP (Yes vs No)	4.130	1.494-12.084	0.007
Tandem EUS/ERCP with FNA (Yes vs No)	13.894	3.928-49.145	< 0.001	14.528	3.571-59.095	< 0.001
Sphincterotomy (Yes vs No)	2.408	1.006-5.764	0.051
Precut (Yes vs No)	1.210	0.275-5.329	0.801
TTS dilation (Yes vs No)	0.000	-	1.000
ERCP duration (min)	1.011	1.001-1.022	0.034
Age at ERCP ≥ 75 years (Yes vs No)	3.722	1.552-8.925	0.003	3.780	1.519-9.408	0.004
ERCP duration ≥ 60 minutes (Yes vs No)	3.933	1.438-10.432	0.006	5.396	1.86-15.656	0.002

Dependent variable: Outcome of post endoscopic retrograde cholangiopancreatography bacteremia; ERCP: Endoscopic retrograde cho-langiopancreatography; EUS: Endoscopic ultrasound; FNA: Fine needle aspiration; TTS: Through the scope.