Effectiveness of trauma-focused cognitive behavioral therapy for Japanese children and adolescents in community settings: a multisite randomized controlled trial

BACKGROUND: Trauma-focused cognitive behavioural therapy (TF-CBT) is an efficacious treatment model for children and adolescents with trauma-related disorders. However, few studies have been conducted in community settings, and there have been no randomized controlled trials in Asian countries. OBJECTIVE: To evaluate the effectiveness of TF-CBT in regular community settings in Japan through comparison with a waitlist with minimal services control condition. METHOD: Thirty Japanese children and adolescents with posttraumatic stress disorder symptoms (22 females, eight males, mean age = 13.90, range = 6–18) were randomly assigned to 12 sessions of TF-CBT or the waitlist control condition. The primary outcome measure was the Kiddie Schedule for Affective Disorders and Schizophrenia score assessed by blinded evaluators one month later. RESULTS: The mean number of sessions was 12 (range: 11–13) in the TF-CBT group and 4.87 (range: 3–7) in the control group. Intention to treat analysis showed that the TF-CBT group achieved significantly greater symptom reduction than did the control group. The effect size (Cohen’s d) between the TF-CBT and control groups was 0.96 (p =.014) for posttraumatic symptoms and 1.15 (p =.004) for depressive symptoms. However, the TF-CBT group did not show better results than the control group with regard to improvements in anxiety symptoms, psychosocial functioning, and behavioural problems. CONCLUSIONS: The findings provided preliminary evidence of the effectiveness of TF-CBT for treating youth with trauma in community mental health facilities. TF-CBT in the Japanese context proved identical to the original, demonstrating that it is also suitable for use with children and adolescents in non-Western settings.