Costs were calculated from the payer's perspective. Only direct costs that arose from diagnosis and treatment of the disease were included in the analysis. More specifically, costs included the drug, endoscopy, costs associated with a visit to the clinic, acute operation, vagotomy, elective surgery, and follow-up of patients who discontinued treatment, on maintenance and who had an operation. Costs were based on Swedish conditions in 1992. More details were not given. Final costs were derived using a model.
Costs were discounted at 5%.