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Table 3 Treatment outcome variables at pre-treatment, post-treatment and 6-month follow-up

From: Emotion regulation individual therapy for adolescents with nonsuicidal self-injury disorder: a feasibility study

Outcome

Pre-treatment

Post-treatment

6-mo f-u

Pre-to post-treatment comparison

Post- to 6-mo follow-up comparison

Pre-to 6-mo follow-up comparison

Count- data

Median (IQR)

Median (IQR)

Median (IQR)

Z

Percentage change [95% CI]

Z

Percentage change [95% CI]

Z

Percentage change [95% CI]

DSHI-9-f

8 (4 to 13)

2.5 (0 to 4.25)

0 (0 to 3)

2.33*

42 [8 to 64]

3.82***

63 [39 to 78]

4.77***

79 [60 to 89]

BSL

3 (2 to 3)

1 (0 to 3)

1 (0 to 2.75)

2.16*

44 [5 to 67]

0.35

13 [−91 to 60]

1.99*

52 [1 to 76]

Continuous

Mean (SD)

Mean (SD)

Mean (SD)

Z

Cohen’s d [95% CI]

Z

Cohen’s d [95% CI]

Z

Cohen’s d [95% CI]

DSHI-9-v

2.12 (1.54)

1.35 (1.22)

0.80 (1.01)

2.02*

0.50 [0.07 to 0.78]

2.24*

0.40 [0.09 to 0.80]

2.61**

0.89 [0.47 to 1.23]

DERS

122.71 (17.18)

109.69 (25.21)

100.57 (17.89)

2.91**

0.81 [0.23 to 1.50]

2.66**

0.59 [0.15 to 1.05]

4.44***

1.40 [0.87 to 2.03]

BPFSC

70.35 (10.72)

66.88 (12.61)

63.36 (11.34)

1.45

0.33 [−0.03 to 1.11]

1.47

0.36 [−0.16 to 0.87]

2.73**

0.69 [0.18 to 1.19]

CGAS

51.24 (4.94)

56.59 (7.97)

61.07 (11.21)

3.7***

1.08 [0.51 to 1.62]

1.72

0.85 [−0.22 to 2.13]

4.74***

1.94 [1.03 to 3.12]

  1. Note. Count data. Test statistics are based on generalized estimation equation models using either a negative binomial or normal distribution with log link function for count and continuous data, respectively. Effect sizes for count data were based on log-transformed scores. Confidence intervals for effect sizes are based on 5000 bootstrap replications. Abbreviations: BPFSC = Borderline Personality Feature Scale for Children, BSL = Borderline Symptom List, CGAS = Children’s Global Assessment Scale, DERS = Difficulties in Emotion Regulation Scale, DSHI-9-f = Deliberate Self-Harm Inventory – frequency past month, DSHI-9-v = Deliberate Self-Harm Inventory – versatility past month. *p < .05, **p < .01, ***p < .001