Increase in the Prevalence of Atrophic Gastritis Among Adults Age 35 to 44 Years Old in Northern Sweden Between 1990 and 2009

Among residents of Northern Sweden, the prevalence of ACG increased from 1990 through 2009, specifically among adults age 35 to 44 years old. The stabilizing seroprevalence of H pylori and the increasing prevalence of overweight and obesity might contribute to this unexpected trend. Studies are needed to determine whether these changes have affected the incidence of gastric cancer.