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Table 5 Factors of adverse events: univariate analysis

From: Risk factors for adverse events associated with endoscopic retrograde cholangiopancreatography in patients with surgically altered anatomy: a retrospective study

Variable Adverse event (+)
(n = 31), n (%)
Adverse event (−)
(n = 90), n (%)
OR (95% CI) P value
Age 0.996 (0.964, 1.028) 0.790
Male gender 25 64 1.693 (0.622, 4.605) 0.303
Prior cholecystectomy 11 29 1.157 (0.490, 2.729) 0.739
Roux-en-Y reconstruction 3 8 1.098 (0.272, 4.429) 0.895
Malignant biliary obstruction 7 16 1.349 (0.496, 3.668) 0.558
Without CBD stones 12 35 0.992 (0.429, 2.294) 0.986
Not first time ERCP attempt 6 31 0.457 (0.169, 1.231) 0.121
CBD stone diameter ≥ 15 mm 4 5 2.519 (0.631, 10.053) 0.191
Cannulation with difficulty or failure 6 12 1.560 (0.531, 4.587) 0.419
Multiple cannulation attempts 5 5 3.269 (0.878, 12.178) 0.077
Pancreatic deep wire pass 4 9 1.333 (0.380, 4.681) 0.653
Endoscopic sphincterotomy 2 7 0.818 (0.161, 4.163) 0.809
Needle-knife precut 2 6 0.966 (0.184, 5.053) 0.967
Endoscopic papillary balloon dilation 22 44 2.556 (1.061, 6.154) 0.036
Endoscopic papillary large balloon dilation (diameter > 10 mm) 13 26 1.778 (0.762, 4.145) 0.183
Endoscopic nasobiliary drainage 18 46 1.324 (0.581, 3.021) 0.504
Endoscopic retrograde biliary drainage 6 8 2.460 (0.779, 7.764) 0.125
Endoscopic retrograde pancreatic drainage 1 6 0.467 (0.054, 4.037) 0.489
Endoscopic metal biliary endoprosthesis 5 12 1.250 (0.402, 3.884) 0.700
Biopsy in the bile duct or papilla 3 1 9.536 (0.953, 95.366) 0.055
Mechanical lithotripsy use 4 2 6.519 (1.131, 37.560) 0.036
Stone balloon catheter 17 39 1.588 (0.699, 3.609) 0.270
Stone retrieval basket 19 42 1.810 (0.787, 4.162) 0.163
Intraductal-ultra sonography 2 3 2.000 (0.318, 12.567) 0.460
Presence of diverticulum 5 14 1.044 (0.343, 3.180) 0.940
Presence of a native papilla 26 71 1.392 (0.471, 4.109) 0.550
With a transparent hood 22 56 1.484 (0.613, 3.596) 0.382
  1. OR: Odds ratio; CI: confidence interval