This study compares completion and recovery rates between protocol-based cognitive behavioural therapy (CBT), offered as a first-line therapy for common mental health problems as per national guidelines, and relational therapies (RTs), scarcely provided in the English Improving Access to Psychological Therapies (IAPT) programme. This is a non-randomized, naturalistic study in a treatment-seeking community sample (n = 708). RTs consist of brief psychodynamic and relational integrative therapy. Completion rates relied on clinicians' coding and recovery rates were calculated based on the Patient Health Questionnaires-9 and the Generalized Anxiety Disorder-7. Doubly robust regression analysis was used to control both the treatment allocation and outcome variables for pretreatment differences between the intervention groups. Significantly more RT clients completed treatment compared with CBT clients. No significant differences in recovery rates between CBT and RTs were found using traditional null hypothesis significance tests; the groups were found to be equivalent using equivalence tests. Only when the analysis was repeated in treatment completers did CBT clients achieve around one-quarter higher recovery rates. Both CBT and RTs appeared to be equally effective and showed recovery and completion rates equivalent to or above the national average. These findings demonstrate the advantages of therapies other than CBT. Future research is needed to replicate the equivalence between these two treatments and to explore specific patient characteristics that make one treatment more suitable and acceptable than the other.

中文翻译：

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英国心理服务机构中基于一线协议的认知行为疗法和非手动关系疗法的完成率和恢复率比较

本研究比较了基于协议的认知行为疗法 (CBT) 与关系疗法 (RTs) 之间的完成率和康复率，后者是根据国家指南作为常见心理健康问题的一线疗法提供的，而英语改善访问心理治疗（IAPT）计划。这是一项在寻求治疗的社区样本（n = 708）。RTs 包括简短的心理动力学和关系综合治疗。完成率依赖于临床医生的编码，恢复率是根据患者健康问卷 9 和广泛性焦虑症 7 计算的。双稳健回归分析用于控制干预组之间治疗前差异的治疗分配和结果变量。与 CBT 客户相比，完成治疗的 RT 客户明显更多。使用传统的零假设显着性检验发现 CBT 和 RT 之间的恢复率没有显着差异；使用等效测试发现这些组是等效的。只有在治疗完成者中重复分析时，CBT 客户才能实现高出约四分之一的恢复率。CBT 和 RT 似乎同样有效，恢复和完成率等于或高于全国平均水平。这些发现证明了除 CBT 之外的其他疗法的优势。未来的研究需要复制这两种治疗之间的等效性，并探索使一种治疗比另一种更适合和可接受的特定患者特征。