Table 2.
Correlations of cVEMP response with clinical scales
| Parameters | RBD | Mini-BESTesT | UPDRS III | H&Y staging | GDS | ESS | MMSE |
|---|---|---|---|---|---|---|---|
| P 13 latency | |||||||
| Correlation coefficient (r) | 0.651 | -0.640 | -0.050 | 0.231 | 0.512 | 0.355 | 0.066 |
| P | 0.01* | 0.01* | 0.86 | 0.65 | 0.06 | 0.21 | 0.98 |
| N23 latency | |||||||
| Correlation coefficient (r) | 0.736 | -0.641 | 0.133 | 0.25 | 0.521 | 0.360 | -0.415 |
| P | 0.003* | 0.04* | 0.65 | 0.67 | 0.65 | 0.12 | 0.14 |
*P≤0.05 significant RBDSQ - Rapid eye movement sleep behaviour disorder screening questionnaire; UPDRS - Unified Parkinson’s disease rating scale; H&Y - Hoehn & Yahr; MMSE - mini-mental state examination; ESS - Epworth sleepiness scale; GDS-15 - Geriatric depression scale; cVEMP - cervical vestibular evoked myogenic potentials