PD (n = 37) | ET (n = 26) | P value | |
---|---|---|---|
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 |