Abdullah, A MGad el Rab, M Oal Ayed, Ial Mazyad, A Sal Sanie, A1997-04-012009-06-041997-04-012009-06-041997-04-01Abdullah AM, Gad el Rab MO, al Ayed I, al Mazyad AS, al Sanie A. Comparison of Helicobacter pylori antibody levels in children in Riyadh. Tropical Gastroenterology. 1997 Apr-Jun; 18(2): 65-6http://imsear.searo.who.int/handle/123456789/124174Helicobacter pylori (H. pylori) antibodies were determined in 229 asymptomatic children and 43 symptomatic children in Saudi Arabia. There is a significant difference in IgG and IgA antibodies for both asymptomatic and symptomatic children (p = 0.00001). We conclude that Helicobacter pylori antibody determination by ELISA is a good screening test for diagnosis of Helicobacter pylori infection in children in Saudi Arabia.engAntibodies, Bacterial --bloodChildChild, PreschoolDuodenal Ulcer --diagnosisEnzyme-Linked Immunosorbent AssayFemaleGastritis --diagnosisHelicobacter Infections --diagnosisHelicobacter pylori --isolation & purificationHumansImmunoglobulin A --bloodImmunoglobulin G --bloodInfantMaleProspective StudiesSensitivity and SpecificityComparative Study