Article Text


Detection of Helicobacter pylori carriers by discriminant analysis of urea and pH levels in gastric juices.
  1. F Ameglio,
  2. M R Abbolito,
  3. D Giannarelli,
  4. F Citarda,
  5. A Grassi,
  6. G M Gandolfo,
  7. V Casale
  1. Laboratory of Clinical Pathology, Regina Elena Institute for Cancer, Rome, Italy.


    An alternative approach to the problems inherent in current methods for detecting Helicobacter pylori carriers--that of being generally time-consuming, expensive, and not sufficiently sensitive--was devised by using the urea concentration and pH levels of gastric juices. A linear discriminant analysis of these variables, measured in 54 patients submitted to digestive endoscopy for gastritis, provided a mathematical formula for assigning the subjects (previously classified by other standard methods) to groups of either positive or negative H pylori carriers. The results obtained showed a correct classification in 52 out of 54 cases with only one false negative and one false positive case.

    Statistics from

    Request Permissions

    If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.