Sleep disturbances are common in posttraumatic stress disorder (PTSD) and can have major impacts on workplace performance and functioning. Although effects between PTSD and sleep broadly have been documented, little work has tested their day-to-day temporal relationship particularly in those exposed to occupational trauma. The present study examined daily, bidirectional associations between PTSD symptoms and self-reported sleep duration and quality in World Trade Center (WTC) responders oversampled for PTSD. WTC responders (N = 202; 19.3% with current PTSD diagnosis) were recruited from the Long Island site of the WTC health program. Participants were administered the Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV; SCID; First, Spitzer, Gibbon, & Williams, 1997) and completed daily assessments of PTSD symptoms, sleep duration and sleep quality for 7 days. PTSD symptoms on a given day were prospectively associated with shorter sleep duration (β = -.13) and worse sleep quality (β = -.18) later that night. Reverse effects were also significant but smaller, with reduced sleep duration (not quality) predicting increased PTSD the next day (β = -.04). Effects of PTSD on sleep duration and quality were driven by numbing symptoms, whereas effects of sleep duration on PTSD were largely based on intrusion symptoms. PTSD symptoms and sleep have bidirectional associations that occur on a daily basis, representing potential targets to disrupt maintenance of each. Improving PTSD numbing symptoms may improve sleep, and increasing sleep duration may improve intrusion symptoms in individuals with exposure to work-related traumatic events. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

中文翻译：

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创伤后应激障碍症状和世界贸易中心响应者的日常生活中的睡眠。

睡眠障碍在创伤后应激障碍（PTSD）中很常见，并且可能对工作场所的表现和功能产生重大影响。尽管已广泛记录了PTSD与睡眠之间的关系，但很少有工作测试它们的日常时间关系，特别是在那些遭受职业创伤的人中。本研究检查了PTSD过度采样的世界贸易中心（WTC）响应者中PTSD症状与自我报告的睡眠时间和质量之间的每日双向关联。从WTC健康计划的长岛站点招募了WTC响应者（N = 202；当前PTSD诊断为19.3％）。参与者接受了《精神疾病诊断和统计手册，第四版》（DSM-IV； SCID；第一，Spitzer，Gibbon和Williams，（1997年），并完成了7天的PTSD症状，睡眠时间和睡眠质量的每日评估。特定日期的PTSD症状可能与那天晚上晚些时候的睡眠时间短（β= -.13）和睡眠质量差（β= -.18）有关。反向作用也很明显，但较小，睡眠时间减少（不是质量）降低，预示第二天PTSD增加（β= -.04）。麻痹症状会影响PTSD对睡眠时间和质量的影响，而睡眠时间对PTSD的影响主要取决于侵入症状。PTSD症状和睡眠每天都发生双向关联，代表潜在的目标可能破坏每个目标的维持。改善PTSD麻木症状可以改善睡眠，并且增加睡眠时间可能会改善与工作相关的创伤事件所引起的个体的侵入症状。（PsycINFO数据库记录（c）2019 APA，保留所有权利）。