Table. 5. Inferential Statistics Comparing Pre- and Post-Treatment Clinical Outcomes for Gender Groups.
| Variable | Transgender (N = 19) | Cisgender (N = 93) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Ax M (SD) | End M (SD) | t | d | 95% CI | Ax M (SD) | End M (SD) | t | d | 95% CI | |
| MSI-BPD | 7.79 (2.02) | 4.89 (3.21) | 3.73** | 0.86 | 0.32-1.38 | 8.54 (1.56) | 5.70 (3.34) | 8.82** | 0.92 | 0.67-1.16 |
| DERS | 139.16 (22.50) | 105.48 (31.26) | 4.32** | 0.99 | 0.43-1.53 | 136.47 (18.59) | 110.81 (21.91) | 7.58** | 0.79 | 0.55-1.02 |
| RFL | 2.55 (0.94) | 3.49 (1.12) | -2.89 * | -0.66 | -1.16-0.16 | 2.51 (1.01) | 3.33 (1.16) | -6.11** | -0.63 | -0.86-0.41 |
| MFQ | 46.89 (9.65) | 32.52 (16.71) | 3.33** | 0.76 | 0.24-1.27 | 46.44 (10.47) | 36.32 (17.52) | 5.83** | 0.60 | 0.38-0.82 |
| SCARED | 52.11 (14.12) | 43.47 (18.88) | 3.39** | 0.78 | 0.25-1.29 | 49.80 (14.56) | 43.75 (19.46) | 3.85** | 0.40 | 0.19-0.61 |
| Pre-Mdn (R) | Post-Mdn (R) | Z | r | Pre-Mdn (R) | Post-Mdn (R) | Z | r | |||
| Self-Injury | 4.00 (0-12) | 0.00 (0-9) | -2.88** | -0.66 | 3.00 (0-56) | 0.00 (0-71) | -5.48** | -0.57 | ||
| A&E | 2.00 (1-15) | 0.00 (0-10) | -2.42* | -0.56 | 1.00 (0-20) | 0.00 (0-5) | -6.02** | -0.62 | ||
| Inpatient Days | 2.00 (0-150) | 0.00 (0-2) | -2.86** | -0.66 | 2.00 (0-341) | 0.00 (0-17) | -6.10** | -0.63 | ||
Notes. *p = <.05, **p = <.01. N = sample size. Ax = assessment, End = end of DBT. M = mean, SD = standard deviation. Cohen’s d small effect = ≥0.20, medium effect = ≥0.50, large effect = ≥0.80 (Cohen, 1988). Rosenthal’s r small effect = ≥0.10, medium effect = ≥0.30, large effect = ≥0.50 (Cohen, 1988). t = paired samples t-test. Z = Wilcoxon Signed Rank Test Z statistic. MSI-BPD = MacLean Screening Instrument for BPD, clinical cut-off = ≥7. DERS = Difficulties with Emotion Regulation Scale, clinical cut-off = ≥128. RFL = Reasons for Living Inventory. MFQ = Moods and Feelings Questionnaire, clinical cut-off = ≥29. SCARED = Screen for Child Anxiety-Related Emotional Disorders, clinical cut-off = ≥25. Self-harm = count of suicidal and non-suicidal self-harm in the first eight weeks (Pre) and last eight weeks (Post) of DBT. A&E = count of Accident and Emergency Department visits in the matched period before DBT (Pre) and during DBT (Post). Inpatient Days = occupied inpatient bed days in the matched period before DBT (Pre) and during DBT (Post).