Psychometric data of patients with borderline personality disorder (BPD) who received dialectical behavioural therapy (DBT) and patients with BPD who received treatment as usual (TAU)
| Measure | DBT | TAU | Group differences at t1 | Group × time interactions | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Mean ± SD | p value* | Cohen d* | Mean ± SD | p value* | Cohen d* | t46 | p value | F1,46 | p value | |
| BSL | 0.006 | 0.52 | 0.71 | 0.03 | −0.17 | 0.86 | 3.19 | 0.08 | ||
| t1 | 2.09 ± 0.61 | 2.13 ± 0.86 | ||||||||
| t2 | 1.71 ± 0.82 | 2.09 ± 0.86 | ||||||||
| ZAN-BPD | < 0.001 | 1.09 | 0.019 | 0.39 | 0.4 | 0.69 | 3.26 | 0.08 | ||
| t1 | 16.61 ± 6.09 | 15.88 ± 6.12 | ||||||||
| t2 | 9.77 ± 6.40 | 12.59 ± 6.43 | ||||||||
| DERS | < 0.001 | 1.11 | 0.45 | 0.08 | 0.3 | 0.77 | 12.16 | 0.001 | ||
| t1 | 134.48 ± 22.33 | 132.43 ± 23.27 | ||||||||
| t2 | 108.86 ± 23.63 | 129.87 ± 25.51 | ||||||||
BSL = Borderline Symptom List; DERS = Difficulties in Emotion Regulation Scale; SD = standard deviation; ZAN-BPD = Zanarini Rating Scale for Borderline Personality Disorder.
↵* t1 – t2.