Table 4.
Clinical characteristics of subjects
| Control (n = 117) | PD (n = 232) | p value | |
|---|---|---|---|
| Age (years) | 59.7 ± 11.3 | 61.2 ± 9.1 | 0.1 |
| Years of education (years) | 15.7 ± 2.91 | 15.4 ± 2.8 | NS |
| Sex (M/F/% males) | 74/43/63.2 | 155/77/66.8 | NS |
| Handedness–R/L/A | 98/11/8 | 210/17/5 | NS |
| Striatum binding ratio | 2.6 ± 0.6 | 1.4 ± 0.4 | <0.0001 |
| MoCA | 28.2 ± 1.2 | 27.3 ± 2.2 | <0.0001 |
| Disease duration (months) | – | 6.9 ± 7.1 | – |
| MDS UPDRS part III | – | 21.9 ± 9.1 | – |
| H&Y stage | – | 1.6 ± 0.5 | – |
M = male, F = female, NS = not significant, H&Y: Hoehn and Yahr, PD: Parkinson's disease, MoCA, Montreal Cognitive Assessment, UPDRS, Unified Parkinson's Disease Rating Scale. Statistical differences analyzed through an unpaired t-test or chi square test. Listed values are the mean ± standard deviation.