Fig. 1.
Distribution of quality of life between cognitive groups. Graph of probability density function of PDQ-39 scores for the discreet groups of normal cognition, PD-MCI 1 SD, PD-MCI 1.5 SD and PD-MCI 2 SD.
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.