Figure 1: Domain hierarchy of delirium severity: broad and narrow domains.
Domain coverage of final item set is indicated by shading of domain boxes: gray-filled boxes are not represented in our final item set
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.