Table 1.
Measurements of First Electrodiagnostic Test Versus Last Electrodiagnostic Test
| Parameter | N | Mean First Test | Median First Test | SD First Test | Mean Last Test | Median Last Test | SD Last Test | Correlation | P Value |
|---|---|---|---|---|---|---|---|---|---|
| Median DML (ms) | 62 | 4.7 | 4.2 | 1.6 | 4.9 | 4.4 | 1.8 | 0.16 | 0.075 |
| Median DSL (ms) | 55 | 4.0 | 3.8 | 0.67 | 4.0 | 3.9 | 0.60 | NS | 0.72 |
| Median/ulnar mixed sensory nerve studies (ms) | 41 | 1.0 | 0.78 | 0.63 | 0.94 | 0.73 | 0.71 | NS | 0.45 |
| Median motor amplitude (mV) | 62 | 9.0 | 9.0 | 3.0 | 8.9 | 9.1 | 2.8 | NS | 0.60 |
| Difference between median and ulnar DML on same side (ms) | 57 | 2.2 | 1.8 | 1.7 | 2.4 | 1.9 | 1.8 | 0.19 | 0.038 |
N=Number; SD=Standard Deviation; DML=Distal Motor Latency; DSL=Distal Sensory Latency; NS=Not Significant; ms=milisecond; mV=milivolt.
The number in bold indicates a significant P value (P<0.05).