This article aimed to provide a systematic narrative synthesis of existing studies on the mediators of change in psychotherapy with adolescents (10–19 years) and transition age youth (TAY) (20–29 years) who have experienced trauma-related symptoms or posttraumatic disorder. Additionally, we were interested in identifying psychotherapy-, trauma type-, and clients’ age- and gender-specific mediators of treatment outcome. Following the preferred reporting items for systematic reviews and meta-analyses, a total of 3,723 studies published in PubMed and PsycINFO databases were screened against inclusion criteria, revealing 15 eligible studies. No studies with only TAY were found; therefore, all results were limited to therapy with adolescents. Cognitive mediators were tested in 66% of selected studies, followed by parents/family-related, mental-health-related, therapy-related, and behavioral mediators. Moderate evidence was found for posttraumatic cognitions, whereas therapeutic alliance seemed to be a promising candidate for future research. Striking absence of non-cognitive-behavioral therapy interventions, emotional and adolescent-specific mediators, as well as studies with males and in non-Western societies was evident. Future original studies would benefit from applying methodological rigor in respect to mediation testing.

中文翻译：

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青少年创伤心理治疗结果的中介因素：系统评价


本文旨在对经历过创伤相关症状或创伤后障碍的青少年（10-19 岁）和过渡年龄青年（TAY）（20-29 岁）心理治疗变化中介因素的现有研究进行系统的叙述性综合。 。此外，我们有兴趣确定治疗结果的心理治疗、创伤类型以及客户的年龄和性别特异性中介因素。根据系统评价和荟萃分析的首选报告项目，根据纳入标准对 PubMed 和 PsycINFO 数据库中发表的总共 3,723 项研究进行了筛选，发现了 15 项符合条件的研究。没有发现仅涉及 TAY 的研究；因此，所有结果仅限于针对青少年的治疗。 66% 的选定研究测试了认知中介因素，其次是父母/家庭相关、心理健康相关、治疗相关和行为中介因素。发现了关于创伤后认知的适度证据，而治疗联盟似乎是未来研究的一个有希望的候选者。明显缺乏非认知行为治疗干预措施、情感和青少年特定的调解因素，以及针对男性和非西方社会的研究。未来的原创研究将受益于在中介测试方面应用严格的方法。