title: [The relation of Helicobacter pylori with dysplasia and stomach neoplasms in Costa Rica].
abstract: Occurrence of the bacterium Helicobacter pylori was compared for two Costa Rican sites with contrasting levels of gastric cancer incidence, Poás (incidence 15.13%) and Puriscal (83.53%). A sample of 185 adults of similar age and sex proportions was studied in each site, using both H. pylori antiserum tests and gastroscopy to collect two biopsies per case. No clear association between H. pylori and gastric cancer was found.
authors.affiliation: Servicio de Gastroenterología, Hospital San Juan de Dios, San José, Costa Rica.
authors.forename: M
authors.initials: M
authors.lastname: Miranda
authors.forename: M
authors.initials: M
authors.lastname: Cháves
authors.forename: L
authors.initials: L
authors.lastname: Orozco
authors.forename: M A
authors.initials: MA
authors.lastname: San Román
authors.forename: S
authors.initials: S
authors.lastname: Durán
authors.forename: G
authors.initials: G
authors.lastname: Vargas
authors.forename: E
authors.initials: E
authors.lastname: Jiménez
authors.forename: L
authors.initials: L
authors.lastname: Peña
authors.forename: L
authors.initials: L
authors.lastname: Rodríguez
authors.forename: E
authors.initials: E
authors.lastname: Barrantes
mesh_terms: D000328:Adult; D003364:Costa Rica / Q000453:epidemiology; D005260:Female; D016481:Helicobacter Infections / Q000150:complications*; D016480:Helicobacter pylori / Q000302:isolation & purification*; D006801:Humans; D015994:Incidence; D008297:Male; D011230:Precancerous Conditions / Q000382:microbiology*; D012307:Risk Factors; D013270:Stomach / Q000473:pathology*; D013274:Stomach Neoplasms / Q000453:epidemiology / Q000382:microbiology* / Q000473:pathology