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.
Cohort demographics.
| Series | N | Age of PD onset (years) | Early onset PD (<50 years) | Age at Study (years) | Number of Males | |
|---|---|---|---|---|---|---|
| Stage One Discovery |
PD cases | 90 | 69 ± 8 (51–90) | 0 (0.0%) | 71 ± 7 (40–90) | 60 (67%) |
| Stage Two Replication |
PD cases | 851 | 65 ± 12 (25–97) | 101 (12%) | 68 ± 11 (28–97) | 540 (63%) |
| Controls | 730 | N/A | N/A | 65 ± 13 (18–88) | 305 (42%) |
Age is given as the sample mean ± SD (minimum-maximum).
