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Table 4 Univariate multilevel analysis of predicting factors for overall deep biliary cannulation success rate

From: Predicting native papilla biliary cannulation success using a multinational Endoscopic Retrograde Cholangiopancreatography (ERCP) Quality Network

Variables

Adjusted*overall cannulation success rate (%)

p value

Case-specific

  

  Trainee involvement

 

<0.0001

  0%

95.1

 

  1-50%

90.1

 

  51-99%

96.8

 

  100%

99.5

 

  ERCP difficulty

 

0.02

  1

95.0

 

  2

95.7

 

  3

93.5

 

  ASA grade

 

<0.0001

  I

96.7

 

  II

95.3

 

  III-V

93.0

 

  Patient status at time of ERCP

 

0.12

  Inpatient

94.7

 

  Outpatient

95.4

 

  Sedation level

 

0.01

  Deep (with propofol)/General

95.8

 

  Moderate/conscious

94.2

 

  Indications

 

<0.0001

  Suspected or known stone

96.8

 

  Obstructive Jaundice

91.9

 

  Chronic pain

96.3

 

  Abnormal liver tests

95.1

 

  Chronic pancreatitis

93.7

 

  Biliary post-surgical problem

94.3

 

  Clarify biliary image findings

94.4

 

  Pancreatitis (acute, active)

91.7

 

  Tumor ablation

96.5

 

Endoscopist-specific

  

  Country setting

 

0.03

  US

95.5

 

  UK

91.9

 

  Other

96.3

 

  Hospital setting

 

0.86

  Academic

94.9

 

  Community

94.7

 

  Volume in Training

 

0.78

  0

95.3

 

  1-100

96.1

 

  101-150

94.3

 

  151-200

94.7

 

  201-250

92.2

 

  >250

95.1

 

  Years of ERCP

 

0.74

  ≤6

95.0

 

  7-12

95.6

 

  13-20

95.2

 

  >20

93.9

 

  Lifetime volume

 

0.10

  ≤587

93.7

 

  588-1200

93.8

 

  1201-2500

94.7

 

  >2500

96.8

 

  Annual volume

 

0.01

  ≤90

92.2

 

  91-150

94.0

 

  151-239

95.3

 

  >239

97.1

 

  Procedure time for grade 1

 

0.04

  ≤25

95.8

 

  >25

93.7

 

  Fluoroscopy time for grade 1

 

0.02

  ≤3

95.9

 

  >3

93.7

 
  1. *Adjusted success rates were obtained from multilevel logistic regression models that accounted for clustering of cases within endoscopists.