Too Long, Too Short, or Too Variable? Sleep Intraindividual Variability and Its Associations With Perceived Sleep Quality and Mood in Adolescents During Naturalistically Unconstrained Sleep
Too Long, Too Short, or Too Variable? Sleep Intraindividual Variability and Its Associations With Perceived Sleep Quality and Mood in Adolescents During Naturalistically Unconstrained Sleep
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DOI：
10.1093/sleep/zsw067
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发表时间：
2017-02-01
期刊：
影响因子：
5.6
通讯作者：
Wiley, Joshua F.
中科院分区：
文献类型：
--
作者：
Bei, Bei;Manber, Rachel;Wiley, Joshua F.
研究广泛地考察了青少年心理健康与平均睡眠时间/质量之间的关系。本研究采用严谨的方法，表征了青少年客观睡眠的个体内变异性（IIV），并考察了其在各自个体均值（IIM）值影响之外对情绪的作用。目的和方法：146名社区青少年（47.3%男性），年龄16.2 +/- 1.0 （M +/- SD）岁，在15天的相对不受限制的睡眠时间假期中，使用活动仪评估睡前时间、起床时间、卧床时间（TIB）和睡眠发作潜伏期（SOL）。自我报告睡眠质量（SSQ）、消极情绪（mood）和其他协变量采用问卷进行评估。对于每个睡眠变量，使用个体均值（IIM）和IIV同时预测心境，SSQ作为中介。模型在贝叶斯iv框架中进行估计；检验了IIM和IIV的线性和二次效应。结果：更长的和更多可变的TIB，以及更多可变的SOL（但不是平均SOL），与较差的SSQ （ps）相关
Introduction: Research has extensively examined the relationship between adolescents' mental health and average sleep duration/quality. Using rigorous methodology, this study characterized adolescents' objective sleep intraindividual variability (IIV) and examined its role on mood beyond the effects of their respective individual mean (IIM) values.Aims and Methods: One hundred forty-six community-dwelling adolescents (47.3% male) aged 16.2 +/- 1.0 (M +/- SD) years wore an actigraph that assessed bedtime, risetime, time-in-bed (TIB), and sleep onset latency (SOL) throughout a 15-day vacation with relatively unconstrained sleep opportunity. Self-report sleep quality (SSQ), negative mood (MOOD), and other covariates were assessed using questionnaires. For each sleep variable, individuals' mean values (IIM) and IIV were used to simultaneously predict MOOD with SSQ as a mediator. Models were estimated in a Bayesian IIV framework; both linear and quadratic effects of the IIM and IIV were examined.Results: Longer and more variable TIB, as well as more variable SOL (but not mean SOL), were associated with poorer SSQ (ps