Eradication was achieved in 29% of cases (n = 30). In multiple logistic regression analysis, duration of ulcer disease was the only variable which correlated with success in H. pylori eradication (chi(2) = 7.2; p = 0.02). Additional variables (age, sex, smoking, pre-treatment with omeprazole, AINEs or H2 antagonist, ulcer size, and antral histologic gastritis) were not correlated with H. pylori eradication