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Table 2 Efficacy of second line H. pylori eradication therapy.

From: Efficacy of Helicobacter pylori eradication therapies: a single centre observational study

Regimen Number Treatment Perecent 95% CI
  treated successful success  
7 days     
PPI 27 19 70% 52.8–87.2*$
nitroimidazole     
tetracycline 500 mg qid     
DCB 240 mg bid     
7 days     
PPI 7 2 28% 0–61
amoxicillin 1 g bid     
nitroimidazole     
7 days     
PPI 1 0 0% -
clarithromycin 500 mg bid     
nitroimidazole     
7 days     
PPI 8 4 50% 15.4–84.6
amoxicillin 1 g bid     
clarithromycin 500 mg bid     
7 days     
RBC 400 mg bid 18 13 73% 52.4–93.6*$
amoxicillin 1 g bid     
clarithromycin 500 mg bid     
7 days     
RBC 400 mg bid 5 4 80% 45–100
tetracycline 1 g bid     
nitroimidazole     
  1. * PPI-DCB-N-T and RBC-A-C were significantly more effective than PPI-A-M as second line therapy (both P < 0.05). $ Bismuth-based (PPI-DCB-N-T or RBC-A-C) was more effective that PPI-triple therapy (P < 0.05).