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Table 1 Demographic characteristics and H. pylori colonization status in the 4 patient groups and Group 1 subgroups.

From: Bile reflux index after therapeutic biliary procedures

  N Age (y) (mean ± SD) Cholecystectomy No. Hp (+) N (%)
Group 1 66 55.4 ± 13.6 54 (81.8) 31 (47)
   BG1 (ES+stent) 28 52.7 ± 12.5 23 (82.1) 13 (46.4)
   BG2 (ES only) 23 55.2 ± 15.3 16 (69.7) 10 (43.5)
   BG3 (Choledochoduodenostomy) 15 60 ± 11.9 15 (100) 8 (53.3)
Group 2 Cholecystectomy 20 64 ± 11.8 20 (100) 10/20 (50)
Group 3 Billroth II 6 62.8 ± 13.6 2 (33.3) 0 (0)
Group 4 Controls 39 51.4 ± 19.3 0 (0) 18 (46.2)
  1. BG: Biliary group. ES: Endoscopic sphincterotomy.