Objective-To examine the association between dyspeptic symptoms and endoscopic and histological diagnoses.Design-Cross sectional study of people with dyspepsia and controls matched for age and sex identified by questionnaire survey of all inhabitants aged 20 to 69. Endoscopy and histological examination was performed with the examiner blind to whether or not the patient had dyspepsia.Setting-Population based survey in S0rreisa, Norway.Subjects