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. 2014 Sep 30;2014:861689. doi: 10.1155/2014/861689

Table 3.

Univariate analyses of contributing factors to failed endoscopic stone extraction.

   SE P value
Failed 
205 (%)
Difficult successful 221 (%)
Age 0.028
 <85 167 (51.2) 159 (48.8)
 ≥85 38 (38.0) 62 (62.0)
Periampullary diverticula 0.016
 No 121 (43.7) 156 (56.3)
 Yes 84 (56.4) 65 (43.6)
Multiple stones 0.046
 No 69 (56.1) 54 (43.9)
 Yes 136 (44.9) 167 (55.1)
Diameter of CBD stones 0.012
 <15 mm 113 (54.6) 94 (45.4)
 ≥15 mm 92 (42.0) 127 (58.0)
Presence of T-tube in situ + proximal lithiasis NS
 No 180 (47.1) 202 (52.9)
 Yes 25 (56.8) 19 (43.2)
Iatrogenic injury to the extrahepatic biliary tree + lithiasis NS
 No 194 (47.7) 213 (52.3)
 Yes 11 (57.9) 8 (42.1)
Intrahepatic stones NS
 No 197 (48.6) 208 (51.4)
 Yes 8 (38.1%) 13 (61.9)
Previous gastrojejunostomy NS
 No 199 (48.7) 210 (51.3)
 Yes 6 (35.3) 11 (64.7)
Acute distal CBD (common bile duct) angulation NS
 No 198 (48.2) 213 (51.8)
 Yes 7 (46.7) 8 (53.3)
Impacted stone NS
 No 160 (49.2) 165 (50.8)
 Yes 45 (44.6) 56 (55.4)