Table 6.
The results of the Beta 2 waves examination (waves from C3, C4 channels).
| Mode | Pre-COVID | Post-COVID | p | |
|---|---|---|---|---|
| C3, eyes open | mean ± SD | 5.01 ± 0.25 | 6.8 ± 1.08 | p < 0.001 * |
| Median | 5.06 | 7.09 | ||
| Quartiles | 4.78–5.12 | 5.59–7.59 | ||
| C4, eyes open | mean ± SD | 4.91 ± 0.58 | 8.33 ± 1.3 | p < 0.001 * |
| Median | 4.64 | 8.7 | ||
| Quartiles | 4.38–5.43 | 6.69–8.94 | ||
| C3, eyes closed | mean ± SD | 4.48 ± 0.53 | 6.54 ± 0.97 | p < 0.001 * |
| Median | 4.4 | 6.59 | ||
| Quartiles | 4–4.94 | 5.59–7.5 | ||
| C4, eyes closed | mean ± SD | 4.92 ± 0.62 | 7.33 ± 0.95 | p < 0.001 * |
| Median | 4.97 | 7.08 | ||
| Quartiles | 4.36–5.43 | 6.69–7.74 | ||
p-Wilcoxon paired test. * statistically significant (p < 0.05).