In 1998-99 20.000 individuals, age 40-65 years, identified by their civil registration number, were allocated by a computerized randomized procedure to HP-screening group and control group. All participants received a questionnaire at inclusion, 1-year and 5-year and now again at 12 year follow-up assessing the prevalence of dyspepsia and quality of life. In addition we will obtain information from registers on, comorbidity, use of endoscopies and prescription medication. An economic evaluation is done alongside the randomized trial.