THE PREVALENCE OF SELF-REPORTED PEPTIC-ULCER IN THE UNITED-STATES

Objectives. The purpose of this study was to draw a current picture of the sociodemographic characteristics of peptic ulcer in the United St ates. Methods. During the National Health Interview Survey of 1989, a special questionnaire on digestive diseases was administered to 41 457 randomly selected individuals. Data were retrieved from public use ta pes provided by the National Center for Health Statistics. Odds ratios were calculated by logistic regression after adjustment for sample we ights in the survey. Results. Of adult US residents, 10% reported havi ng physician-diagnosed ulcer disease, and one third of these individua ls reported having an ulcer in the past year. Old age, short education , low family income, being a veteran, and smoking acted as significant and independent risk factors. Gastric and duodenal ulcer occurred in both sexes equally often. Duodenal ulcer was more common in Whites tha n non-Whites, while gastric ulcer was more common in non-Whites. Concl usions. The age-related rise and socioeconomic gradients of peptic ulc er represent the historic scars of previous infection rates with Heli- cobacter pylori. The racial variations reflect different ages at the t ime of first infection; younger and older age at the acquisition of H. pylori appear to be associated with gastric and duodenal ulcer, respe ctively.