Trends in incidence of acute pancreatitis in a Swedish population: is there really an increase?
GROUND AND AIMS: Recent reports have suggested an increasing incidence of acute pancreatitis, and changing patterns of risk factors, over the past decades. The aim of this study was to investigate trends in the incidence of acute pancreatitis, and risk factors related to the disease, in a general population over a 15-year period. METHODS: Clinical, autopsy, and forensic records for all patients with a first attack of acute pancreatitis in Malmö, Sweden, from 1985 to 1999, were validated retrospectively. Evidence for diagnosis was reconsidered and plausible cause was assessed. The incidence of gallstone disease, lung cancer, and alcohol-related conditions in the background population were retrieved from hospital diagnosis records and cancer and cause-of-death registries. RESULTS: A total of 929 first attacks of acute pancreatitis were identified. The total incidence of acute pancreatitis increased by 3.9% per year (95% confidence interval [CI], 2.1-5.8). The incidence of gallstone-relat