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Table 3 Univariate multilevel analysis of predicting factors for conventional deep biliary cannulation success rate

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

Variables

Adjusted*conventional cannulation success rate (%)

p value

Case-specific

  

 Trainee involvement

 

<0.0001

  0%

89.2

 

  1-50%

81.3

 

  51-99%

93.1

 

  100%

99.0

 

  ERCP difficulty

 

<0.0001

  1

90.2

 

  2

89.5

 

  3

86.2

 

  ASA grade

 

<0.0001

  I

92.1

 

  II

89.4

 

  III-V

87.7

 

  Patient status at time of ERCP

0.002

  Inpatient

88.6

 

  Outpatient

90.5

 

  Sedation level

 

0.14

  Moderate/conscious

88.8

 

  propofol /general

90.2

 

  Indications

 

<0.0001

  Suspected or known stone

92.1

 

  Obstructive Jaundice

84.5

 

  Chronic pain

91.4

 

  Abnormal liver tests

90.3

 

  Chronic pancreatitis

88.9

 

  Biliary post-surgical problem

85.5

 

  Clarify biliary image findings

89.5

 

  Pancreatitis (acute, active )

86.6

 

  Tumor ablation

94.1

 

Endoscopist-specific

  

  Country setting

 

0.04

  US

90.5

 

  UK

86.4

 

  Other

87.8

 

  Hospital setting

 

0.51

  Academic

90.2

 

  Community

89.2

 

Volume in Training

 

0.31

  0

89.3

 

  1-100

93.3

 

  101-150

89.1

 

  151-200

89.2

 

  201-250

84.9

 

  >250

90.4

 

  Years of ERCP

 

0.79

  ≤6

90.1

 

  7-12

89.2

 

  13-20

89.5

 

  >20

88.0

 

  Lifetime volume

 

0.81

  ≤587

89.3

 

  588-1200

89.8

 

  1201-2500

88.2

 

  >2500

89.8

 

  Annual volume

 

0.53

  ≤90

87.9

 

  91-150

88.4

 

  151-239

90.1

 

  >239

90.6

 

  Procedure time for grade 1

0.86

  ≤25

89.6

 

  >25

89.4

 

  Fluoroscopy time for grade 1

 

  ≤3

90.0

0.43

  >3

88.9

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