[The urease rapid test (CLO test). Attempt at statistical analysis for the evaluation of Campylobacter colonization in the gastric antrum].

CLO-tests: A statistical analysis for the evaluation of the presence of Campylobacter pylori in antral mucosal biopsies. Antral biopsies taken in a sample of 475 endoscopy patients were positive for CLO on 21% of 77 controls, compared with 39% of non-ulcer dyspepsia (NUD) patients without and 69% with a history of former peptic ulcer. Epigastric pain was associated with a positive CLO-test more frequently than belching or heart burn. Patients with NUD of Turkish or Yugoslavian nationality had a significantly higher rate of positive CLO-reactions compared with Germans or Italians with the same diagnosis. In 96 patients with peptic ulcer, the percentage of positive CLO-test decreased significantly in old persons.