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.
Box plots of median, 25th and 75th percentile representing rate of change over time of UPDRS, MMSE, and ESS-c scores. Rates of change were calculated by subtracting the first examination score from the last examination before death, then dividing it by the time in years between the examinations.
