From: Genomewide association study for onset age in Parkinson disease
N
% Male
Mean Onset
Std Dev Onset
Range Onset
GenePD-PROGENI
857
59.2
61.9
10.9
19-90
Mayo-Perlegen LEAPS
440
61.6
61.0
11.2
30-94
Milan, Italian
747
59.4
55.2
10.8
20-81