Patients undergoing elective repair of an abdominal aortic aneurysm do better at eight years

In the UK Small Aneurysm trial of 1090 patients with a medium-sized abdominal aortic aneurysm, there is no difference in survival with early elective surgery compared with initial surveillance. However, by eight years patients undergoing early surgery have a significantly better outcome than those in the surveillance group (P=0.05 ). I bars represent the 95 percent confidence intervals for the point estimates.