Arora Teresa, Alhelali Eman, Grey Ian
Zayed University, Abu Dhabi, United Arab Emirates.
Lebanese American University, Beirut, Lebanon.
Neurobiol Sleep Circadian Rhythms. 2020 Oct 14;9:100059. doi: 10.1016/j.nbscr.2020.100059. eCollection 2020 Nov.
Depersonalization is characterized by feelings of detachment from reality and has been associated with anxiety and depression, both of which have a bi-directional relationship with sleep. To date, few studies have directly examined the potential relationship between sleep and depersonalization, which was the primary objective of our study.
DESIGN/METHODS: A cross-sectional study of female, Emirati, university students (n = 100) was conducted. Participants completed the Pittsburgh Sleep Quality Index (PSQI), the Cambridge Depersonalization Scale (CDS) and the Hospital Anxiety and Depression Scale (HADS). Additionally, 36 of the 100 participants wore wrist actigraphy for two consecutive weekdays. Average sleep duration, and average sleep efficiency (SE; %) across the two nocturnal sleep episodes were calculated. Total number of sleep episodes were obtained from wrist actigraphy and sleep logs.
A significant, positive relationship was observed between PSQI global score and CDS total score (r = 0.21, p = 0.04). Actigraphy-estimated average nocturnal sleep duration was not significantly associated with the CDS. Compared to nocturnal sleepers only, those who undertook daytime naps had almost three times the risk of meeting the criteria for depersonalization disorder (OR = 2.95, 95% CI: 1.04-8.41), after adjustment. For each 1% increase in SE a 23% decreased risk of depersonalization was observed (OR = 0.77, 95% CI: 0.61-0.96), after adjustment.
Sleep screening in young adults may help to ensure better detection and management of psychological health outcomes. Our findings need to be confirmed prospectively in larger samples and amongst different populations but reiterate the importance of sleep habits pertaining to mental health.
人格解体的特征是与现实脱节的感觉，并且与焦虑和抑郁有关，而焦虑和抑郁与睡眠都存在双向关系。迄今为止，很少有研究直接考察睡眠与人格解体之间的潜在关系，这是我们研究的主要目的。
设计/方法：对100名阿联酋女大学生进行了一项横断面研究。参与者完成了匹兹堡睡眠质量指数（PSQI）、剑桥人格解体量表（CDS）和医院焦虑抑郁量表（HADS）。此外，100名参与者中有36人在连续两个工作日佩戴手腕活动记录仪。计算了两个夜间睡眠时段的平均睡眠时间和平均睡眠效率（SE；%）。从手腕活动记录仪和睡眠日志中获取睡眠时段总数。
观察到PSQI总分与CDS总分之间存在显著的正相关（r = 0.21，p = 0.04）。活动记录仪估计的平均夜间睡眠时间与CDS无显著关联。与仅夜间睡眠者相比，经调整后，白天小睡的人符合人格解体障碍标准的风险几乎是其三倍（OR = 2.95，95%CI：1.04 - 8.41）。经调整后，SE每增加1%，人格解体风险降低23%（OR = 0.77，95%CI：0.61 - 0.96）。
对年轻人进行睡眠筛查可能有助于更好地检测和管理心理健康状况。我们的研究结果需要在更大样本和不同人群中进行前瞻性验证，但再次强调了睡眠习惯与心理健康的重要性。
