Supporting data for “Sleep and Arousal of Survivors of Chronic Childhood Trauma”

To investigate the complex relationships among sleep, arousal, and dissociation in childhood trauma survivors, three studies were conducted using samples of community-dwelling adults in Hong Kong. 

Study 1 examined the differences in subjective sleep quality and sleep-related experiences among individuals exposed to short-term, chronic, and no childhood trauma, and evaluate if the chronicity of trauma altered the relationship between childhood trauma and sleep. Nine-hundred-and-fourteen adults completed an online survey on sleep, trauma-related symptoms, and psychological distress. 

Study 2 extracted the data from Study 1 and examined the factor structure and psychometric properties of the Chinese version of the Dissociative Experiences Measure, Oxford (HKC-DEMO). 

Study 3 examined the mediating role of arousal and the moderating role of dissociation in the relationship between childhood trauma and sleep. Fifty survivors of chronic childhood trauma and their age-and-gender-matched controls who reported no history of childhood trauma completed a week of sleep diary and an overnight portable polysomnography assessment. Heart rate variability and skin conductance level were also assessed at baseline and under distress to evaluate autonomic arousal.

为探究儿童创伤幸存者睡眠、觉醒与解离之间的复杂关系，本研究开展了三项研究，研究对象为居住在香港的社区成年人。研究一分析了暴露于短期、慢性及无儿童创伤的个体在主观睡眠质量及睡眠相关经历方面的差异，并评估创伤的慢性程度是否改变了儿童创伤与睡眠之间的关系。共有九百一十四名成年人完成了关于睡眠、创伤相关症状及心理痛苦的在线调查。研究二从研究一中提取数据，考察了《解离经验测量量表》（牛津版，HKC-DEMO）的中文版本的因素结构和心理测量特性。研究三探讨了觉醒在儿童创伤与睡眠关系中的中介作用和解离在其中的调节作用。五十名慢性儿童创伤幸存者及其年龄和性别匹配的无儿童创伤史对照者完成了为期一周的睡眠日记记录和夜间便携式多导睡眠图评估。此外，在基线和压力下，还评估了心率变异性及皮肤电导水平，以评价自主性觉醒。