National Surveillance ofHelicobacter pyloriEradication Therapy in Denmark: Results from Registration of 34,582 Prescriptions

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Abstract
Background: We wanted to characterize the use of Helicobacter pylori eradication therapy in Denmark (5,227,862 inhabitants). ethods: All H. pylori eradication treatments from a nationwide database including all redeemed drug prescriptions in the period January 1994 to June 1996 were identified. So were all outpatients receiving a drug prescription for H. pylori eradication. Results: We recorded 34,582 prescriptions for H. pylori eradication therapy given to 28,784 patients. The incidence of new consumers was 220 per 105 inhabitants per year, with a maximum at 70-79 years of age. Eighty-six per cent of the patients had only one treatment course. In 16% of the eradication therapies, nonsteroid anti-inflammatory drugs had been prescribed within the previous 3 months, and 45% had an anti-ulcer drug prescribed 1-12 months after the H. pylori eradication therapy. Consumption of antibiotics used for H. pylori eradication accounted for 1.4% of the total consumption of antibiotics. Conclusions: The incidence of H. pylori eradication therapy was fairly stable but with changes in the pattern of drug regimens used. Anti-ulcer drugs were often given after H. pylori eradication therapy, suggesting an inappropriate use of treatment.