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Table 3 Patient’s demographics, group distribution and group characteristics of 361 patients submitted to NKF

From: Influence of a novel classification of the papilla of Vater on the outcome of needle-knife fistulotomy for biliary cannulation

  Type I
n (%)
47 (13.0)
Type IIa
n (%)
128 (35.5)
Type IIb
n (%)
109 (30.2)
Type IIc
n (%)
35 (9.6)
Type IIIa
n (%)
14 (3.9)
Type IIIb
n (%)
14 (3.9)
Type IV
n (%)
14 (3.9)
p
Age, median 74 70 72 74 79 80 75 0.074
Sex, n (%)         0.528
 Male 24 (51) 55 (43) 49 (45) 15 (43) 4 (29) 3 (21) 6 (43)  
 Female 23 (49) 73 (57) 60 (55) 20 (57) 10 (71) 11 (79) 8 (57)  
Final diagnosis, n (%)
 CBD stones 23 (48.9) 83 (64.9) 51 (46.8) 20 (57.1) 11 (78.6) 7 (50.0) 3 (21.4) 0.010
 Malignant stricture 16 (34.0) 22 (17.2) 26 (23.9) 7 (20) 1 (7.1) 1 (7.1) 5 (35.7) 0.229
 Leaks 1 (2.1) 3 (2.3) 5 (4.6) 1 (2.9) 0 0 0 0.935
 Other findings 7 (15.0) 20 (15.6) 27 (24.8) 7 (20.0) 2 (14.3) 6 (42.9) 6 (42.9) 0.356
  1. NKF, needle knife fistulotomy; CBD, common bile duct
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