2002
DOI: 10.1093/qjmed/95.8.519
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Relationship between the birth cohort pattern of Helicobacter pylori infection and the epidemiology of duodenal ulcer

Abstract: Duodenal ulcer prevalence (as judged by the rate of referral of duodenal ulcer patients for endoscopy) is determined principally by the distribution of H. pylori infection in the local population. The birth cohort effect seen in adult duodenal ulcer patients reflects the acquisition of H. pylori in childhood. In Bristol, H. pylori prevalence and duodenal ulcer incidence are both declining to very low levels.

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Cited by 39 publications
(32 citation statements)
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“…Participants who tested positive for H. pylori with the UBT (using a standard test meal of citric acid and orange juice with a cutoff of Cd 13 3.5 per cm 3 ) 13 were randomised either to H. pylori eradication therapy (ranitidine bismuth citrate 400 mg and clarithromycin 500 mg twice daily for 2 weeks) or to placebo. Randomisation was stratified by gender and age (20)(21)(22)(23)(24)(25)(26)(27)(28)(29)30-39, 40-49 and 50-59 years). Staff independent of the study prepared the randomisation sequence, which was generated by computer with a block size of 10.…”
Section: Methodsmentioning
confidence: 99%
“…Participants who tested positive for H. pylori with the UBT (using a standard test meal of citric acid and orange juice with a cutoff of Cd 13 3.5 per cm 3 ) 13 were randomised either to H. pylori eradication therapy (ranitidine bismuth citrate 400 mg and clarithromycin 500 mg twice daily for 2 weeks) or to placebo. Randomisation was stratified by gender and age (20)(21)(22)(23)(24)(25)(26)(27)(28)(29)30-39, 40-49 and 50-59 years). Staff independent of the study prepared the randomisation sequence, which was generated by computer with a block size of 10.…”
Section: Methodsmentioning
confidence: 99%
“…A 17 év alatt észlelt 23%-os csökkenés mérsékeltebb volt, mint a betegeinknél észlelt 38,7%, de a klinika referenciacentrum, így a beteganyag különböző lehetett, a kiinduló 42%-os klinikai érték pedig alacsonyabb az azonos évben nálunk észlelt 71,3%-nál [17]. Mind a klinikai, mind saját eredményeink alapján a vizsgált időszakokban a H. pylori prevalenciája jelentősen csökkent, igazolva a fejlett álla-mokban észlelt tendenciát [1,2,3,4,5,6,7,8,9].…”
Section: Megbeszélésunclassified
“…A Bristol Helicobacter Project keretében 10 537 egyénnél végeztek 13 C-urea-kilégzési tesztet és azt tapasztalták, hogy a H. pylori-fertőzés gyakorisága az 1930-as években született egyéneknél észlelt 28,8%-ról az 1970-es években 3,5%-ra csökkent [5]. Az endoszkóposan igazolt nyombélfekélyek aránya az 1979-es 22,2%-ról 1998-ban 5,7%-ra csökkent.…”
Section: Megbeszélésunclassified
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