Dialectical Behavioral Therapy for Adolescents (DBT-A): a clinical Trial for Patients with suicidal and self-injurious Behavior and Borderline Symptoms with a one-year Follow-up

Table 3 Development of psychosocial adjustment from the beginning of therapy to one year after its end

Instrument			Before therapy (t₁)		Four weeks after therapy (t₂)		One year after therapy (t₃)		Statistics (t₁to t₃)
		N	Mean Value	SD	Mean Value	SD	Mean Value	SD	Wilcoxon-Test	Effect size d
GAF	Overall functioning	12	57.8	12.0	76.7	8.7	78.3	9.4	p = 0.010**	-1.91
CGI	Clinical global impression	12	5.67	0.78	3.44	0.73	3.00	1.48	p = 0.007**	3.40
ILC Adolescent	School	9	3.00	1.78	1.86	1.07	1.80	1.03	p = 0.011*	1.85
	Family	11	2.92	1.24	2.13	1.25	2.00	0.78	p = 0.070	0.79
	Social contact with peers	11	2.17	0.72	1.63	0.52	1.73	0.79	p = 0.206	0.62
	Interests and recreational activities	11	2.50	1.17	1.38	1.06	1.82	1.25	p = 0.107	0.46
	Physical health	11	2.50	1.17	2.25	0.89	2.27	0.91	p = 0.366	0.18
	Mental health	11	3.83	0.72	2.50	1.20	2.36	0.67	p = 0.004**	2.05
	Global rating of life quality	11	3.67	0.58	1.88	0.83	1.91	0.54	p = 0.004**	2.84
	Stress associated with the present disorder	11	3.83	0.94	2.50	1.07	2.18	0.87	p = 0.009**	1.77
	Stress associated with the assessment and therapy	11	2.25	0.87	1.13	0.35	1.27	0.47	p = 0.026*	1.30
ILC Therapist	Social contact with peers	12	2.17	1.19	1.78	1.30	1.83	1.34	p = 0.102	0.27
	Self occupation	12	2.17	0.58	2.44	2.51	1.58	0.67	p = 0.020*	0.94
	Need for treatment	12	4.08	0.29	2.67	0.71	2.25	1.14	p = 0.004**	2.20

SD = Standard deviation; * = Significance (bilateral) ≤ 0.05; ** = Significance (bilateral) ≤ 0.01; GAF = Global Assessment Scale of Functioning; CGI = Clinical Global Impression; ILC = Inventory of Life Quality in Children and Adolescents