Table 7 Correlation between both H&Y staging and UPDRS, and ff- ERG parameters in PD patients
From: Retinal functional and structural changes in patients with Parkinson’s disease
H&Y staging | Total UPDRS | |||||
|---|---|---|---|---|---|---|
(r) coef | P-value | (r) coef | P-value | |||
Light-adapted ERG | ||||||
Rt eye | a wave | Latency (milliseconds) | 0.037 | 0.801 | -0.121 | 0.402 |
Amplitude (µV) | -0.025 | 0.865 | -0.311 | 0.028* | ||
b wave | Latency (milliseconds) | -0.059 | 0.684 | -0.171 | 0.235 | |
Amplitude (µV) | -0.070 | 0.631 | -0.395 | 0.005* | ||
Lt eye | a wave | Latency (milliseconds) | 0.032 | 0.826 | -0.119 | 0.410 |
Amplitude (µV) | -0.151 | 0.300 | -0.362 | 0.011* | ||
b wave | Latency (milliseconds) | 0.026 | 0.857 | -0.068 | 0.637 | |
Amplitude (µV) | -0.115 | 0.427 | -0.419 | 0.002* | ||
Dark-adapted ERG | ||||||
Rt eye | a wave | Latency (milliseconds) | -0.062 | 0.673 | -0.038 | 0.793 |
Amplitude (µV) | -0.045 | 0.755 | -0.001 | 0.997 | ||
b wave | Latency (milliseconds) | -0.128 | 0.375 | -0.342 | 0.015* | |
Amplitude (µV) | -0.044 | 0.759 | 0.081 | 0.575 | ||
Lt eye | a wave | Latency (milliseconds) | -0.063 | 0.666 | -0.009 | 0.953 |
Amplitude (µV) | -0.049 | 0.735 | 0.004 | 0.980 | ||
b wave | Latency (milliseconds) | -0.113 | 0.433 | -0.264 | 0.064 | |
Amplitude (µV) | -0.008 | 0.955 | 0.099 | 0.492 | ||