Table 2 Diagnostic features discriminating the patients with PD from ET
Diagnostic feature | Sensitivity(%) | Specificity(%) | PPV(%) | NPV(%) |
|---|---|---|---|---|
(1) Hyposmia | 62.2 | 96.2 | 95.8 | 64.1 |
(2) SN hyperechogenicity | 48.6 | 84.6 | 81.8 | 53.7 |
(3) Either (1) or (2) present | 78.4 | 80.8 | 85.3 | 72.4 |
(4) Both (1) and (2) present | 29.7 | 100 | 100 | 50.0 |