Table 1

General characteristics, APOE genotypes, and allele frequencies in patients with Parkinson’s disease (PD) and controls

Familial PDSporadic PDControls
Number5746387
Mean( SD) age at onset (y)57  (13)56  (10)
Mean (SD) age at examination (y)65 (12)65 (9)67  (9)
Sex M/F29/2827/19215/172
APOE genotype % (n):
 2/22 (1)00.5 (2)
 2/314 (8)26 (12)11 (43)
 3/370 (40)57 (26)62 (239)
 4/2001.5 (6)
 4/314 (8)17 (8)24 (92)
 4/4001 (5)
APOE allele frequency %:
 ε29137
 ε3847879
 ε47914