The following direct health service costs were considered: hospital costs, nursing, physician visits. Discounting was applied for the second and third years at a rate of 5%. Quantities and costs were not analysed separately. The price year was 1991.
The costs to society, expressed in days absence from work, were considered. Discounting was applied at 5% to the average gross monthly salary. No other indirect costs were included. Price year was 1991.