Table 7.
Correlation analysis between parameters of ERP components (N1 and P1) and clinical characteristics in all participants (correlation coefficient rs).
| N1 latency | N1 amplitude | P1 latency | P1 amplitude | |
|---|---|---|---|---|
| Age (years) | -0.177 | 0.143 | 0.058 | 0.175 |
| Disease duration (years) | 0.037 | -0.105 | 0.203 | 0.076 |
| Education degree (years) | -0.326* | -0.091 | -0.232 | -0.058 |
| LED (mg) | 0.086 | 0.028 | 0.162 | 0.134 |
| ESS | 0.089 | 0.041 | 0.287 | 0.086 |
| PDSS | 0.260 | -0.128 | -0.046 | 0.226 |
| RBD-HK | -0.047 | 0.163 | 0.003 | 0.191 |
| H-Y stage | 0.091 | 0.149 | 0.236 | 0.051 |
| HAMA | 0.127 | 0.360* | 0.035 | 0.047 |
| HAMD-17 | -0.074 | 0.191 | -0.045 | -0.095 |
∗P < 0.05.