Background: Although insomnia disorder and social anxiety disorder are among the most prevalent psychiatric disorders, no studies have yet evaluated the use of sequential evidence-based treatment protocols in the population with co-morbid social anxiety disorder and insomnia disorder. Aims: This study aimed to investigate the effects of sequential treatments on co-morbid insomnia disorder and social anxiety disorder. As depression is a common co-morbid syndrome for both insomnia and social anxiety, a secondary aim was to examine depressive symptoms. Method: A single-case repeated crossover AB design was used. Ten participants between 18 and 59 years of age with co-morbid DSM-5 diagnoses of insomnia disorder and social anxiety disorder received sequential treatments with cognitive behavioural therapy (CBT). Seven participants completed the treatment course. The primary outcomes were symptoms of insomnia and social anxiety, and the secondary outcome was symptoms of depression. Results: The effects of CBT on people with co-morbid social anxiety disorder and insomnia disorder were mixed. The majority of participants improved their sleep quality and lessened symptoms of social anxiety and depression. However, participants differed in their degree of improvement concerning all three disorders. Conclusions: Sequential CBT treatments are potentially effective at decreasing symptoms of social anxiety and insomnia for people with co-morbid social anxiety disorder and insomnia disorder. The variation in outcome across participants makes firm conclusions about the treatment efficacy difficult to draw.

中文翻译：

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采用连续 CBT 方案治疗共病失眠和社交焦虑症：单例实验研究

背景：尽管失眠症和社交焦虑症是最普遍的精神疾病之一，但尚未有研究评估在患有共病社交焦虑症和失眠症的人群中使用循序渐进的循证治疗方案。目的：本研究旨在调查序贯治疗对共病失眠症和社交焦虑症的影响。由于抑郁症是失眠和社交焦虑的常见合并症，次要目的是检查抑郁症状。方法：采用单例重复交叉AB设计。10 名 18 至 59 岁的参与者患有共病帝斯曼-5失眠症和社交焦虑症的诊断接受了认知行为疗法（CBT）的序贯治疗。七名参与者完成了治疗过程。主要结果是失眠和社交焦虑症状，次要结果是抑郁症状。结果：CBT 对同时患有社交焦虑症和失眠症的人的影响是混合的。大多数参与者改善了他们的睡眠质量并减轻了社交焦虑和抑郁的症状。然而，参与者对这三种疾病的改善程度不同。结论：对于同时患有社交焦虑障碍和失眠障碍的人来说，连续 CBT 治疗在减轻社交焦虑和失眠症状方面可能是有效的。