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 horizontal lines represent the values within the 95% CI of the underlying effects. The vertical line indicates an incident hazard ratio (HR) of 1. B‐AVR indicates bioprosthetic aortic valve replacement; and M‐AVR, mechanical aortic valve replacement.
