Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The observed survival (95% CI) in 865 patients with bicuspid aortic valves after aortic valve surgery (red line), according to sex (A) and age categories (B), and the expected survival of the age, sex and calendar year-matched Swedish population (black line).
