BACKGROUND Insomnia is common in adolescents. This study evaluated feasibility and preliminary efficacy of a six-week internet-delivered cognitive-behavioral therapy for insomnia (ICBT-I) in adolescents. METHODS In this uncontrolled pilot study, participants (n = 27, 78% female) completed assessments pre- and post intervention. Data on recruitment, adherence to treatment, treatment activity, satisfaction and credibility was collected to assess feasibility. Self-reported insomnia symptoms, sleep parameters as well as depression, anxiety and daytime function were also assessed. RESULTS Participants showed good adherence to treatment and found the intervention overall credible and satisfactory. From pre- to post-assessment, statistically significant improvements were found for insomnia symptoms (p < .001; d = 1.02), sleep onset latency (p < .001; d = .39), wake after sleep onset (p = .001; d = .34), sleep efficiency (p < .001; d = .5) and depression (p = .01, d = .37). Changes in scores of total sleep time, generalized anxiety, daytime sleepiness and functional disability were not significant. CONCLUSIONS The present study indicates that ICBT-I is well accepted by adolescents, that insomnia symptoms and sleep parameters can improve following the intervention, and that co-morbid symptoms of depression can be reduced. Due to the limited sample size and the uncontrolled design, the suggested results need to be replicated in well-powered controlled clinical trials.

中文翻译：

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针对青少年失眠症的互联网认知行为疗法：可行性和初步疗效。

背景技术失眠在青少年中很常见。本研究评估了为期六周的青少年网络失眠认知行为疗法（ICBT-I）的可行性和初步疗效。方法 在这项非对照试点研究中，参与者（n = 27，78% 为女性）完成了干预前后的评估。收集有关招募、治疗依从性、治疗活动、满意度和可信度的数据以评估可行性。还评估了自我报告的失眠症状、睡眠参数以及抑郁、焦虑和日间功能。结果 参与者表现出良好的治疗依从性，并发现干预总体上可信且令人满意。从评估前到评估后，失眠症状 (p < .001; d = 1.02)、入睡潜伏期 (p < .001; d = .39)、入睡后醒来 (p = .39) 均有统计学显着改善。 001；d = .34）、睡眠效率（p < .001；d = .5）和抑郁症（p = .01，d = .37）。总睡眠时间、广泛性焦虑、日间嗜睡和功能障碍的评分变化不显着。结论 本研究表明 ICBT-I 受到青少年的广泛接受，干预后失眠症状和睡眠参数可以改善，并且抑郁症的共病症状可以减少。由于样本量有限和不受控制的设计，建议的结果需要在强有力的对照临床试验中重复。