Table 1: Demographic characterization of case and controls.
Number of participants (n)
Females (%)
Age (years)
Age of Onset (years)
Familial history of PD (%)
Control
599
57.9
72.8
N/A
N/A
PD
502
40.2
67.6
59.4
31.8
PD= Parkinson’s disease, Age of onset was defined as the age when the patient received a diagnosis, familial history was self-reported by interview, n= number of individuals.