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Table 1 Comparison of the findings in H. pylori positive and negative cases in a late post-treatment setting

From: The diagnostic value of endoscopy and Helicobacter pylori tests for peptic ulcer patients in late post-treatment setting

Patients (n = 34) Non-invasive method
   13 C-UBT (+) n = 17 13 C-UBT (-) n = 17
Invasive methods Endoscopy: Normal 11 13
  Duodenal ulcer 2 0
  Gastric ulcer 2 0
  Erosions 2 4
  Cytology: H. pylori (+) 4* Diverse forms of bacteria
  Histology: H. pylori (+) 17 0
  Bacteriology: H. pylori (+) 16 1
  PCR: H. pylori (+) 17 0
  1. * typical morphology of H. pylori (the other cases showing diverse forms of bacteria)