Screening for abdominal aortic aneurysms was cost-effective for prolonging survival from AAA-related death in older men.

I n t e r v e n t i o n Men were allocated to be invited (n = 33 839) or not to be invited (n = 33 961) for screening. The invited group received by mail an invitation from their family physician, an information booklet, and a questionnaire. Those accepting the invitation attended a clinic and had an ultrasonographic scan of the abdominal aorta. Scan results were sent to the family physicians. No contact was made with men in the uninvited group with respect to screening.