Figure 1.
Diagram displaying derivation of study sample for the analyses with source of exclusion. AD indicates Alzheimerʼs disease; MCI, mild cognitive impairment; NACC, National Alzheimerʼs Coordinating Center.
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.