Table 3.
Spearman correlation analyses were used to assess the relationships between PSV metrics and clinical scales in patients with PD-PIGD
| PSV metrics | PSV volume | PSV-L_PCL FC | PSV-R_PCG FC | PSV-L_FG FC | PSV-R_Put FC | PSV-R_Crus II FC | |
|---|---|---|---|---|---|---|---|
| PIGD score | r | −0.17 | −0.26 | −0.32 | 0.19 | −0.21 | 0.25 |
| p value | 0.095 | 0.013 | 0.002 | 0.066 | 0.04 | 0.014 | |
| UPDRS III score | r | −0.10 | 0.02 | −0.01 | 0.07 | 0.01 | 0.11 |
| p value | 0.329 | 0.867 | 0.955 | 0.537 | 0.936 | 0.292 | |
| MMSE | r | 0.25 | 0.21 | 0.19 | −0.09 | 0.07 | −0.13 |
| p value | 0.014 | 0.044 | 0.065 | 0.377 | 0.526 | 0.216 | |
| MoCA | r | 0.24 | 0.25 | 0.18 | 0.01 | 0.14 | −0.22 |
| p value | 0.02 | 0.015 | 0.089 | 0.893 | 0.173 | 0.037 |
Values represent Spearman partial correlation coefficients (r) and corresponding p-values, adjusted for age, within the PD-PIGD group (n = 94). Bold indicates statistical significance (p < 0.05).
L_FG left fusiform gyrus, L_PCL left paracentral lobule, MMSE Minimum Mental State Examination, MoCA Montreal Cognitive Assessment, PIGD postural instability and gait difficulty, PSV Posterior Superior Vermis, R_Crus II right cerebellar crus II, R_PCG right precentral gyrus, R_Put right putamen, UPDRS III Unified Parkinson’s Disease Rating Scale Part III.