Table 4.
LS Mean Changes in |z-score| QEEG Parameters for Averaged SOIs at Sites Trained
| QEEG Parameter: Frequency Band | Comparison | n | LS Mean Change | 95% CI LL | 95% CI UL | t | dz | p |
| Absolute Power: Delta | Baseline to Pre | 11 | 0.27 | 0.03 | 0.52 | 2.27 | 0.69 | 0.0315 |
| Pre to Post | 11 | –0.61 | –0.95 | –0.28 | –3.80 | –1.15 | 0.0008* | |
| Post to Follow-up | 7 | –0.11 | –0.55 | 0.33 | –0.51 | . | 0.6129 | |
| Pre to Follow-up | 7 | –0.73 | –1.32 | –0.13 | –2.49 | –0.94 | 0.0196 | |
| Relative Power: Delta | Baseline to Pre | 12 | 0.29 | –0.13 | 0.72 | 1.42 | . | 0.1681 |
| Pre to Post | 10 | –0.51 | –0.96 | –0.06 | –2.33 | –0.74 | 0.0281 | |
| Post to Follow-up | 5 | –0.22 | –0.83 | 0.39 | –0.75 | . | 0.4625 | |
| Pre to Follow-up | 6 | –0.73 | –1.32 | –0.15 | –2.58 | –1.06 | 0.0160 | |
| Absolute Power: Theta | Baseline to Pre | 6 | 0.53 | –0.07 | 1.13 | 1.87 | . | 0.0811 |
| Pre to Post | 7 | –1.01 | –1.58 | –0.44 | –3.78 | –1.43 | 0.0018* | |
| Post to Follow-up | 5 | 0.01 | –0.76 | 0.78 | 0.02 | . | 0.9812 | |
| Pre to Follow-up | 5 | –1.00 | –1.81 | –0.19 | –2.64 | –1.18 | 0.0185 | |
| Relative Power: Theta | Baseline to Pre | 18 | 0.15 | –0.19 | 0.49 | 0.90 | . | 0.3712 |
| Pre to Post | 16 | –0.68 | –1.03 | –0.33 | –3.87 | –0.97 | 0.0004* | |
| Post to Follow-up | 10 | 0.00 | –0.49 | 0.49 | 0.00 | . | 0.9968 | |
| Pre to Follow-up | 12 | –0.68 | –1.17 | –0.18 | –2.76 | –0.80 | 0.0085* | |
| Absolute Power: Beta | Baseline to Pre | 14 | 0.27 | 0.03 | 0.52 | 2.27 | 0.61 | 0.0293 |
| Pre to Post | 13 | –0.56 | –0.81 | –0.31 | –4.51 | –1.25 | <.0001* | |
| Post to Follow-up | 9 | –0.02 | –0.38 | 0.35 | –0.10 | . | 0.9228 | |
| Pre to Follow-up | 10 | –0.58 | –0.96 | –0.19 | –3.03 | –0.96 | 0.0047* | |
| Relative Power: Beta | Baseline to Pre | 16 | 0.06 | –0.10 | 0.21 | 0.73 | . | 0.4699 |
| Pre to Post | 12 | –0.10 | –0.27 | 0.08 | –1.14 | . | 0.2619 | |
| Post to Follow-up | 9 | –0.21 | –0.44 | 0.02 | –1.83 | . | 0.0748 | |
| Pre to Follow-up | 11 | –0.31 | –0.54 | –0.08 | –2.69 | –0.81 | 0.0108* | |
| Absolute Power: High Beta | Baseline to Pre | 12 | 0.14 | –0.36 | 0.64 | 0.56 | . | 0.5770 |
| Pre to Post | 12 | –0.66 | –1.17 | –0.16 | –2.69 | –0.78 | 0.0116* | |
| Post to Follow-up | 7 | –0.09 | –0.77 | 0.59 | –0.28 | . | 0.7835 | |
| Pre to Follow-up | 9 | –0.76 | –1.43 | –0.08 | –2.27 | –0.76 | 0.0303 | |
| Relative Power: High Beta | Baseline to Pre | 5 | 0.05 | –0.42 | 0.53 | 0.25 | . | 0.8077 |
| Pre to Post | 7 | –0.56 | –0.97 | –0.15 | –2.90 | –1.09 | 0.0111* | |
| Post to Follow-up | 5 | –0.21 | –0.75 | 0.34 | –0.81 | . | 0.4318 | |
| Pre to Follow-up | 6 | –0.77 | –1.32 | –0.21 | –2.93 | –1.20 | 0.0104* |
SOI: sites of interest (within each metric for each frequency band, |z-score| of baseline values that are farther than 1.5 standard deviations from zero for the sites trained, selected at pre-treatment timepoint); n: number of participants who had at least one SOI for the given frequency band/parameter; LS Mean: pairwise least squares mean change values in average distance from zero for SOIs; 95% CI LL: 95% confidence interval lower limit; 95% CI UL: 95% confidence interval upper limit; dz: Cohen’s d for effect size of paired differences; t: test statistic; p: p-value for post-hoc pairwise comparisons. *Bonferroni-corrected significance level αB = 0.0125.