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Table 3 Procedure related variables

From: The H.O.U.S.E. classification: a novel endoscopic retrograde cholangiopancreatography (ERCP) complexity grading scale

  TOTAL HOUSE 1 HOUSE 2 HOUSE 3 P
n = 1931 n = 1124 n = 541 n = 266
Procedure time (min) (mean ± SEM) 55.9 ± 0.9 40 ± 0.7 65 ± 1.5 106 ± 3.2 <.0001
Deep bile duct cannulation (%)a 92.7 90.9 95.8 95.1 0.0009
Previous sphincterotomy (%) 30.4 22.3 42.5 39.5 <.0001
Advanced procedures (%) 7.7 1.0 3.1 45.5 <.0001
  1. a136 excluded where the bile duct was not intended to cannulate