Table 2.
Descriptive statistics for (A) between-group differences and (B) within-group differences across timepoints on CAPS total severity scores. (A) Independent sample two-sided t-tests were performed for estimated marginal mean CAPS total scores and Fisher’s exact tests were performed for presence/absence of PTSD diagnosis with a statistical significance threshold of p < 0.05. (B) Linear mixed model results for pairwise comparisons of timepoints conducted with a Bonferroni-corrected statistical significance threshold of p < .008.
| Between-group differences: CAPS Total | ||||||||
|---|---|---|---|---|---|---|---|---|
| Estimated Marginal Mean | S.D. | 95% C.I. of difference (Lower) | 95% C.I. of difference (Upper) | t | p | Cohen’s d | PTSD dx (%) | |
| Pre-treatment | ||||||||
| DBR | 38.48 | 8.99 | −3.05 | 6.08 | 0.667 | .508 | 0.182 | 29/29 (100%) |
| WL | 40.00 | 7.51 | 25/25 (100%) | |||||
| Post-treatment | ||||||||
| DBR | 24.45 | 12.55 | 6.56 | 18.15 | 4.278 | <.001* | 1.167 | 15/29 (51.7%)* |
| WL | 36.80 | 7.68 | 24/25 (96.0%) | |||||
| 3MFU | ||||||||
| DBR | 19.91 | 12.87 | 6.94 | 21.16 | 3.984 | <.001* | 1.176 | 12/23 (52.2%)* |
| WL | 33.96 | 11.04 | 22/23 (95.7%) | |||||
| B. Within-group differences: CAPS Total | ||||||||
| |
Mean Difference |
S.E. |
95% C.I. (Lower) |
95% C.I. (Upper) |
df |
p |
% change |
|
| Waitlist | ||||||||
| PreWL-PostWL | 3.20 | 2.15 | −1.12 | 7.52 | 47.98 | .143 | 8.0% | |
| PreWL-3MFU | 5.30 | 2.68 | −0.12 | 10.73 | 39.17 | .055 | 15.1% | |
| PostWL-3MFU | 2.10 | 2.15 | −3.36 | 7.57 | 39.71 | .441 | 7.7% | |
| DBR | ||||||||
| PreDBR-PostDBR | 14.03 | 2.87 | 8.28 | 19.79 | 50.77 | <.001† | 36.6% | |
| PreDBR-3MFU | 18.70 | 3.11 | 12.40 | 25.00 | 38.46 | <.001† | 48.6% | |
| PostDBR-3MFU | 4.67 | 3.51 | −2.40 | 11.73 | 47.26 | .190 | 12.1% | |
* Indicates statistical significance for between-group differences (p < .05).
Indicates Bonferroni-corrected statistical significance for within-group differences (p < .008).
Note. WL = Waitlist; 3MFU = 3-month follow-up; DBR = Deep Brain Reorienting; S.D. = Standard deviation; S.E. = Standard error; C. I. = Confidence interval; dx = Diagnosis.