Table 4 Comparison of SSR and RRIV results between MSA and PD groups
SSR | RRIV | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Upper extremity latency (ms) | Lower extremity latency (ms) | Upper extremity amplitude (mV) | Lower extremity amplitude (mV) | Abnormal rate | RRIV during calm breathing (%) | RRIV during deep breathing (%) | Abnormal rate (%) | ||||||
Left | Right | Left | Right | Left | Right | Left | Right | ||||||
MSA | 1597.81 ± 186.26 | 1628.47 ± 145.76 | 2085.54 ± 222.35 | 2210.90 ± 268.5 | 0.68 (0.41, 0.68) | 0.62 (0.39, 0.85) | 0.44 (0.30, 0.91) | 0.45 (0.25, 0.69) | 97.6 (40/41) | 7.62 ± 4.71 | 11.89 ± 6.77 | 95.1 (39/41) | |
PD | 1627.13 ± 264.80 | 1604.88 ± 301.25 | 2097.21 ± 234.50 | 2107.54 ± 257.39 | 0.71 (0.49, 1.48) | 0.84 (0.38, 1.43) | 0.66 (0.38, 0.84) | 0.69 (0.45, 0.99) | 90.6% (29/32) | 9.22 ± 4.45 | 12.70 ± 6.08 | 84.4 (27/32) | |
P | 0.720 | 0.764 | 0.896 | 0.359 | 0.926 | 0.523 | 0.488 | 0.056 | 0.439 | 0.145 | 0.595 | 0.251 | |