New Epidemiologic Evidence on Functional Dyspepsia Subgroups and Their Relationship to Psychosocial Dysfunction

Functional dyspepsia (FD) is a highly prevalent condition, characterized by symptoms suggested to be of gastroduodenal origin, in the absence of an organic cause that is likely to explain them.1,2 Most studies used the Rome II criteria, which defined FD as the presence of pain or discomfort in the epigastrium in the absence of underlying organic disease.1 In this approach, discomfort refers to a group of symptoms that includes postprandial fullness, early satiation, epigastric burning, belching, nausea, upper abdominal bloating, and vomiting.