A reappraisal of time trends in ulcer disease: factors related to changes in ulcer hospitalization and mortality rates.

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Abstract
There has been a dramatic decline in reported hospitalization and mortality rates for peptic ulcer disease in the past two decades. Data from the National Center for Health Statistics and from the Commission on Professional and Hospital Activities were examined to determine the cause(s) for this decline. Gastric and duodenal ulcer mortality rates decreased by 58 per cent and 68 per cent, respectively, from 1962 to 1978; changes in criteria for selecting the underlying cause of death might account for some of this apparent decrease. Hospitalization rates for duodenal ulcers decreased nearly 50 per cent from 1970 to 1978, but hospitalizations for gastric ulcers did not decrease. During this same time period, hospitalizations for peptic ulcers as one of the "all listed" causes remained stable, and hospitalizations for a closely related diagnosis, gastritis/duodenitis, increased. Changes in coding practices, hospitalization criteria, and diagnostic procedures appear to have contributed to the decline in reported hospitalization and mortality rates for peptic ulcer disease.