Table 1.
Characteristics of the study groups.
| Characteristics | AD (n = 211) | PD (n = 508) | PDD (n = 117) | PDND (n = 106) | Control (n = 412) | P1 value | P2 value | P3 value |
|---|---|---|---|---|---|---|---|---|
| Age at onset, years | 62.50 ± 5.09 | 61.36 ± 5.52 | 62.09 ± 4.55 | 60.94 ± 5.56 | 61.81 ± 5.20 | 0.115 | 0.444 | 0.091 |
| Female, n (%) | 133 (63.0%) | 289 (56.9%) | 64 (54.7%) | 56 (52.8%) | 248 (60.2%) | 0.491 | 0.312 | 0.780 |
| APOEε4(+), n (%) | 62 (29.4%) | 79 (15.6%) | 18 (15.4%) | 15 (14.2%) | 68 (16.5%) | 0.0002 | 0.695 | 0.796 |
P1, AD compared with Control; P2, PD compared with Control; and P3, PDD compared with PDND.