Background: Canadian public safety personnel (PSP) experience high rates of mental health disorders and face many barriers to treatment. Internet-delivered cognitive behavioral therapy (ICBT) overcomes many such barriers, and is effective for treating depression, anxiety, and posttraumatic stress disorder (PTSD) symptoms. Objective: This study was designed to fill a gap in the literature regarding the use of ICBT tailored specifically for PSP. We examined the effectiveness of a tailored ICBT program for treating depression, anxiety, and PTSD symptoms among PSP in the province of Saskatchewan. Methods: We employed a longitudinal single-group open-trial design (N=83) with outcome measures administered at screening and at 8 weeks posttreatment. Data were collected between December 5, 2019 and September 11, 2020. Primary outcomes included changes in depression, anxiety, and PTSD symptoms. Secondary outcomes included changes in functional impairment; symptoms of panic, social anxiety, and anger; as well as treatment satisfaction, working alliance, and program usage patterns. Results: Clients reported large symptom reductions on measures of depression and anxiety, as well as moderate reductions on measures of PTSD and secondary symptoms, except for social anxiety. Most clients who reported symptoms above clinical cut-offs on measures of depression, anxiety, and PTSD during screening experienced clinically significant symptom reductions. Results suggested good engagement, treatment satisfaction, and working alliance. Conclusions: Tailored, transdiagnostic ICBT demonstrated promising outcomes as a treatment for depression, anxiety, and PTSD among Saskatchewan PSP and warrants further investigation. Trial Registration: Clinicaltrials.gov NCT04127032; https://www.clinicaltrials.gov/ct2/show/NCT04127032

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中文翻译：

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为公共安全人员量身定制的跨诊断互联网认知行为疗法的初步结果：纵向观察研究

背景：加拿大公共安全人员 (PSP) 的精神健康障碍发生率很高，并且面临许多治疗障碍。互联网提供的认知行为疗法 (ICBT) 克服了许多此类障碍，可有效治疗抑郁、焦虑和创伤后应激障碍 (PTSD) 症状。目标：本研究旨在填补有关使用专门为 PSP 量身定制的 ICBT 的文献空白。我们检查了量身定制的 ICBT 计划在治疗萨斯喀彻温省 PSP 中的抑郁、焦虑和 PTSD 症状方面的有效性。方法：我们采用纵向单组开放试验设计（N=83），在筛选时和治疗后 8 周时进行结果测量。数据收集于 2019 年 12 月 5 日至 2020 年 9 月 11 日之间。主要结果包括抑郁、焦虑和 PTSD 症状的变化。次要结果包括功能障碍的变化；恐慌、社交焦虑和愤怒的症状；以及治疗满意度、工作联盟和程序使用模式。结果：客户报告抑郁和焦虑的症状大幅减少，PTSD 和继发性症状的指标适度减少，社交焦虑除外。大多数在筛选期间报告的抑郁、焦虑和 PTSD 指标高于临床临界值的客户都经历了临床上显着的症状减轻。结果表明良好的参与度、治疗满意度和工作联盟。结论：量身定制的跨诊断 ICBT 在治疗抑郁症、焦虑症、和 PTSD 在萨斯喀彻温省 PSP 中，需要进一步调查。试验注册：Clinicaltrials.gov NCT04127032；https://www.clinicaltrials.gov/ct2/show/NCT04127032

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