Table 2.
Means, Standard Deviations, and Within-Group Effect Sizes for each Outcome Measure by Timepoint and Treatment Completer Status
| Intent-to-Treat (n=13) |
DBT PE Protocol Completers (n=7) |
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Baseline (n=13) |
6-month (n=11) |
12-month (n=11) |
15-month (n=11) |
Effect sizes (d) |
Baseline (n=7) |
6-month (n=7) |
12-month (n=7) |
15-month (n=7) |
Effect sizes (d) |
|||
| Outcome | M (SD) | M (SD) | M (SD) | M (SD) | Pre- Post |
Pre- FU |
M (SD) | M (SD) | M (SD) | M (SD) | Pre- Post |
Pre- FU |
| PTSD | 35.5 (10.1) | 21.8 (13.9) | 15.2 (11.7) | 17.1 (8.7) | 1.4* | 2.3* | 36.6 (8.6) | 24.4 (14.0) | 13.9 (13.3) | 17.9 (9.1) | 1.7* | 2.2* |
| Intentional self-injury acts | 38.6 (69.1) | 2.2 (6.6) | 1.5 (3.2) | 0.4 (0.9) | 0.5a | 0.6a | 12.1 (12.9) | 0.3 (0.8) | 1.0 (2.6) | 0.4 (1.1) | 0.9a | 0.9a |
| Suicidal ideation | 10.8 (5.0) | 6.8 (5.3) | 6.5 (4.5) | 5.3 (4.3) | 0.8* | 1.0* | 10.7 (5.6) | 7.1 (6.4) | 5.4 (4.9) | 5.0 (4.9) | 1.0* | 0.9* |
| Dissociation | 28.1 (15.3) | 23.8 (15.1) | 13.8 (12.8) | 18.1 (17.9) | 1.0* | 1.4* | 28.5 (15.0) | 23.6 (15.7) | 13.9 (16.0) | 20.9 (20.7) | 1.2* | 1.1* |
| Trauma-related guilt cognitions | 2.3 (0.8) | 1.9 (0.9) | 1.5 (0.8) | 1.7 (1.0) | 1.0* | 0.6* | 2.0 (0.8) | 1.8 (0.9) | 1.4 (0.9) | 1.5 (1.1) | 0.7 | 0.4 |
| Shame | 85.8 (10.2) | 79.0 (15.7) | 68.5 (23.6) | 72.7 (18.9) | 0.9* | 0.8* | 87.4 (13.1) | 76.3 (18.3) | 61.3 (27.0) | 68.1 (22.1) | 1.3* | 1.1* |
| Anxiety | 24.3 (8.0) | 19.1 (8.4) | 15.8 (7.6) | 19.8 (8.4) | 0.8* | 0.4 | 25.6 (6.2) | 19.1 (8.8) | 15.1 (8.2) | 20.6 (9.4) | 1.6* | 0.8 |
| Depression | 19.7 (6.4) | 16.3 (8.6) | 15.5 (6.5) | 20.2 (6.4) | 0.5 | −0.1 | 20.1 (4.6) | 17.4 (8.5) | 14.1 (5.6) | 19.9 (6.5) | 0.9* | 0.1 |
| Global social adjustment | 4.4 (0.5) | – | 3.6 (0.5) | – | 1.2* | – | 4.3 (0.5) | – | 3.6 (0.5) | – | 1.5* | – |
Note. Means, standard deviations and effect sizes were calculated using the raw data. Effect sizes with an asterisk represent statistically significant changes from pre-treatment. FU = 3-month follow-up.
a
Mixed effects models to determine statistical significance could not be computed for intentional self-injury acts due to the low frequency of these behaviors.