Abstract
The tendency and frequency of stomach X-ray examination in patients with peptic ulcer were surveyed in Niigata City based on applications from the medical facilities to the health insurances. The average frequency of stomach X-ray examination in patients insured by the high-benefit health insurances was significantly higher than that in patients insured by the low-benefit insurances. If all patients consult directly specialists for X-ray examination, 5.7% of examinations or exposure would be reduced.
