Background: This study investigated the relationship between sleep disturbance and somatic symptoms among adolescents residing on a psychiatric inpatient unit. Given the evidence that sleep disturbance may precede the onset of depression and anxiety and the clear associations between mood and somatic symptoms, depression and anxiety were considered as potential mediators of this relationship. Gender was tested as a potential moderator of the relationship between sleep disturbance and depression and anxiety, respectively. Method: A convenience sample of 83 adolescents completed a packet of self-report measures after admission to the unit. Measures assessed depression, sleep disturbance, anxiety, and somatic symptoms. Mediation and moderation analyses were conducted using SPSS PROCESS macro. Results: With anxiety included as a covariate, the overall indirect effect of sleep disturbance on somatic symptoms through depression was significant. No significant moderation effects were found, although females reported significantly higher levels of sleep disturbance, depression, anxiety, and somatic symptoms than males. Conclusions: Results indicated that depression mediated the relationship between sleep disturbance and somatic symptoms above and beyond the effects of anxiety. These findings suggest that interventions aimed at reducing the negative effects of sleep disturbance should also target mood in this population. Individual differences including gender should be considered when developing interventions.

中文翻译：

---

抑郁和焦虑是精神病住院青少年睡眠障碍和躯体症状之间关系的中介因素。

背景：本研究调查了精神科住院部青少年的睡眠障碍与躯体症状之间的关系。鉴于睡眠障碍可能先于抑郁和焦虑发作的证据，以及情绪和躯体症状之间的明确关联，抑郁和焦虑被认为是这种关系的潜在中介。测试性别分别作为睡眠障碍与抑郁和焦虑之间关系的潜在调节因素。方法：83 名青少年在进入单位后完成了一系列自我报告措施。测量评估抑郁、睡眠障碍、焦虑和躯体症状。使用 SPSS PROCESS 宏进行中介和调节分析。结果：当焦虑作为协变量时，睡眠障碍通过抑郁对躯体症状的整体间接影响是显着的。尽管女性报告的睡眠障碍、抑郁、焦虑和躯体症状水平显着高于男性，但没有发现显着的调节效应。结论：结果表明，抑郁症对睡眠障碍和躯体症状之间的关系的调节作用超出了焦虑的影响。这些发现表明，旨在减少睡眠障碍负面影响的干预措施也应针对该人群的情绪。制定干预措施时应考虑包括性别在内的个体差异。