P300 potentials of patients with fibromyalgia and controls at the beginning of treatment
| Patients with FM (n=13) | Controls (n=10) | |||
|---|---|---|---|---|
| Mean (SD) | Range | Mean (SD) | Range | |
| Patients with FM v controls (Mann-Whitney U test): *not significant; †p<0.05. | ||||
| P300 latency (ms)* | 330.4 (29.9) | 272–365 | 320.6 (26.2) | 264–349 |
| N2P3 amplitude (μV)† | 11.3 (5.6) | 4.3–20.4 | 18.5 (5.3) | 9.4–25.3 |