the seroprevalence of igg antibodies against helicobacter pylori detected by immunoassay was determined in a case-control study that included 59 patients with diabetes mellitus and 19 healthy individuals from havana city that were incorporated as a control group. patients were divided into 3 groups according to recent recruitment, treatment only with diet, or with diet plus hypoglycemic agents. the seroprevalence of anti- helicobacter pylori antibodies in the groups of diabetic patients was 90, 94 and 77 %, respectively, in relation to the value of 58 % of the control group. helicobacter pylori infection was markedly associated with diabetes mellitus in recently recruited patients with diabetes mellitus, or in those treated with diet only (p= 0.03, p= 0.01).
