Baillet Marion, Cosin Charlotte, Schweitzer Pierre, Pérès Karine, Catheline Gwenaëlle, Swendsen Joel, Mayo Willy
Université de Bordeaux, INCIA, UMR 5287 - Equipe NeuroImagerie et Cognition HumaineBordeaux, France; CNRS, INCIA, UMR 5287 - Equipe NeuroImagerie et Cognition HumaineBordeaux, France.
CNRS, INCIA, UMR 5287 - Equipe NeuroImagerie et Cognition HumaineBordeaux, France; EPHE, Laboratoire Neurobiologie et Vie QuotidienneBordeaux, France.
Front Aging Neurosci. 2016 Jul 26;8:181. doi: 10.3389/fnagi.2016.00181. eCollection 2016.
OBJECTIVE/BACKGROUND: Sleep plays a central role in maintaining health and cognition. In most epidemiologic studies, sleep is evaluated by self-report questionnaires but several reports suggest that these evaluations might be less accurate than objective measures such as polysomnography or actigraphy. Determinants of the discrepancy between objective and subjective measures remain to be investigated. The aim of this pilot-study was to examine the role of mood states in determining the discrepancy observed between objective and subjective measures of sleep duration in older adults.
PATIENTS/METHODS: Objective sleep quantity and quality were recorded by actigraphy in a sample of 45 elderly subjects over at least three consecutive nights. Subjective sleep duration and supplementary data, such as mood status and memory, were evaluated using ecological momentary assessment (EMA).
A significant discrepancy was observed between EMA and actigraphic measures of sleep duration (p < 0.001). The magnitude of this difference was explained by the patient's mood status (p = 0.020). No association was found between the magnitude of this discrepancy and age, sex, sleep quality or memory performance.
The discrepancy classically observed between objective and subjective measures of sleep duration can be explained by mood status at the time of awakening. These results have potential implications for epidemiologic and clinical studies examining sleep as a risk factor for morbidity or mortality.
目的/背景：睡眠在维持健康和认知方面起着核心作用。在大多数流行病学研究中，睡眠是通过自我报告问卷进行评估的，但有几份报告表明，这些评估可能不如多导睡眠图或活动记录仪等客观测量方法准确。客观和主观测量之间差异的决定因素仍有待研究。这项初步研究的目的是探讨情绪状态在确定老年人睡眠时长的客观和主观测量之间所观察到的差异中所起的作用。
患者/方法：通过活动记录仪记录了45名老年受试者至少连续三个晚上的客观睡眠量和质量。使用生态瞬时评估（EMA）评估主观睡眠时长以及补充数据，如情绪状态和记忆力。
在EMA和活动记录仪测量的睡眠时长之间观察到显著差异（p < 0.001）。这种差异的程度可由患者的情绪状态解释（p = 0.020）。未发现这种差异的程度与年龄、性别、睡眠质量或记忆表现之间存在关联。
睡眠时长的客观和主观测量之间经典观察到的差异可由醒来时的情绪状态解释。这些结果对将睡眠作为发病率或死亡率风险因素的流行病学和临床研究具有潜在意义。
