Table 1.
Clinical characteristics of patients with PD and ET
| PD (n = 37) | ET (n = 26) | Pvalue | |
|---|---|---|---|
|
Age, years |
63.8 ± 8.7 |
59.1 ± 12.3 |
0.104 |
|
Gender (male/female) |
26/11 |
14/12 |
0.183 |
|
Duration, years |
3.6 ± 3.1 |
12.0 ± 10.8 |
0.000 |
|
MMSE |
27.5 ± 2.2 |
27.9 ± 1.4 |
0.407 |
|
SS-16 |
8.6 ± 2.9 |
12.2 ± 1.6 |
0.000 |
|
UPDRS-III |
17.8 ± 12.3 |
- |
|
|
H &Y stage |
|
|
|
|
1–2 |
28 |
- |
|
|
2.5–4 |
9 |
- |
|
|
Olfactory dysfunction |
|
|
0.000 |
|
SS-16 < 9.5 |
23 |
1 |
|
|
SS-16 > 9.5 |
14 |
25 |
|
|
SN hyperechogenicity |
|
|
0.006 |
|
Positive |
18 |
4 |
|
| Negative | 19 | 22 |
PD Parkinson’s disease, ET Essential tremor, SS-16 the 16-item odor identification test from Sniffin’ Sticks, SN Substantia nigra.