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.

Measure population

In continuous variable measures, the measure population defines the group of patients or episodes from the initial population that qualify to be assessed by the measure. This may be the same as the initial population or a smaller subset, depending on the specific goals of the measure.