title: [Prevalence of Helicobacter pylori infection in children evaluated at "Hospital de Clínicas de Porto Alegre", RS, Brazil].
abstract: OBJECTIVE
  To determine prevalence of Helicobacter pylori infection in a group of symptomatic patients between 2 and 18 years old who were submitted to gastric biopsy during upper endoscopy done in the period of 1990-97. To correlate the histological findings with clinical and endoscopical data.
  
  
  METHODS
  A cross-sectional study done after review of clinical and histopathological data. Histopathological sections were reviewed by a pathologist, who did not know the clinical information and the previous histopathological reports.
  
  
  RESULTS
  Among 181 patients evaluated, prevalence of Helicobacter pylori infection was 24.86% (45 positive cases). In pathological analysis, gastritis was found in 38/45 of the positive Helicobacter pylori patients and in 45/136 negative Helicobacter pylori. Gastric ulceration was found in 6/45 positive Helicobacter pylori and in 3/136 negative Helicobacter pylori.
  
  
  CONCLUSIONS
  This study stated a significative association between Helicobacter pylori infection and pathological abnormalities in children evaluated in the "Hospital de Clínicas de Porto Alegre", RS, Brazil.
authors.affiliation: Bolsistas (PIBIC) Programa Institucional de Bolsas de Iniciação Científica do Conselho Nacional de Ciências e Tecnologia (CNPq)/UFRGS.
authors.forename: M B
authors.initials: MB
authors.lastname: Sousa
authors.forename: L P
authors.initials: LP
authors.lastname: Luz
authors.forename: D M
authors.initials: DM
authors.lastname: Moreira
authors.forename: O M
authors.initials: OM
authors.lastname: Bacha
authors.forename: R M
authors.initials: RM
authors.lastname: Chultz
authors.forename: M I
authors.initials: MI
authors.lastname: Edelweiss
mesh_terms: D000293:Adolescent; D001706:Biopsy; D016009:Chi-Square Distribution; D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D016145:Endoscopy, Digestive System; D005260:Female; D016481:Helicobacter Infections / Q000175:diagnosis / Q000453:epidemiology* / Q000473:pathology; D016480:Helicobacter pylori; D006801:Humans; D016014:Linear Models; D008297:Male; D015995:Prevalence