An official website of the United States government
Here's how you know
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.
Bland-Altman plot with change in the opening pressure (extended minus flexed ) plotted on the Y-axis and average opening pressure (sum of the flexed and extended opening pressure measures divided by two) plotted on the X-axis.