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Infect."],"published-print":{"date-parts":[[1991,4]]},"abstract":"<jats:title>SUMMARY<\/jats:title><jats:p>Patients (454) referred for gastroscopy to the General Hospital of Athens were examined to determine (1) if non-secretors were over-represented among patients with ulcers and (2) is there was an association with ABO blood group or secretor status and carriage of<jats:italic>Helicobacter pylori<\/jats:italic>.<\/jats:p><jats:p>Compared with the local population, among patients with either gastric ulcer (51) or duodenal ulcer (96) there was a significant increase in the proportion of those who were blood group O (<jats:italic>P<\/jats:italic>&lt; 0\u00b7025); however, there were no significant differences in the proportions of non-secretors.<jats:italic>H. pylori<\/jats:italic>was identified in 62 % of the 454 patients: 59\u00b75 % of those without evidence of ulcers; 62\u00b75 % of those with gastric ulcer; 88% of those with duodenal ulcer (<jats:italic>P<\/jats:italic>&lt; 0\u00b70005). These bacteria were cultured more often and in higher numbers from patients with duodenal ulcer (<jats:italic>P<\/jats:italic>&lt; 0\u00b7025). There was no association between ABO blood group and prevalence of<jats:italic>H. pylori<\/jats:italic>. The prevalence of<jats:italic>H. pylori<\/jats:italic>among non-secretors with gastric ulcer (12\u00b75%) was significantly lower than that for non-secretors with duodenal ulcer (100%) (<jats:italic>P<\/jats:italic>&lt; 0\u00b70005). This was not observed for secretors.<\/jats:p>","DOI":"10.1017\/s0950268800048366","type":"journal-article","created":{"date-parts":[[2009,5,15]],"date-time":"2009-05-15T09:13:27Z","timestamp":1242378807000},"page":"221-229","update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":73,"title":["ABO blood group, secretor status and detection of<i>Helicobacter pylori<\/i>among patients with gastric or duodenal ulcers"],"prefix":"10.1017","volume":"106","author":[{"given":"A.","family":"Mentis","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"C. C.","family":"Blackwell","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"D. 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