Circadian Type and Bed-Timing Regularity in 654 Retired Seniors: Correlations with Subjective Sleep Measures
Circadian Type and Bed-Timing Regularity in 654 Retired Seniors: Correlations with Subjective Sleep Measures
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DOI：
10.1093/sleep/34.2.235
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发表时间：
2011-02-01
期刊：
影响因子：
5.6
通讯作者：
Beach, Scott R.
中科院分区：
文献类型：
--
作者：
Monk, Timothy H.;Buysse, Daniel J.;Beach, Scott R.
研究目的：利用退休老年人的电话访谈数据，探索昼夜节律类型(晨度)和上床规律的个体间差异与主观睡眠质量和数量的关系。设计：MANCOVA，以晨度、上床时间稳定性和起床时间稳定性为自变量，睡眠测量为因变量；研究对象：654名退休老年人(65岁以上，363岁，291F)。干预：无。测量和结果：自变量：(1)昼夜节律类型(综合晨度表[CSM])，(2)就寝时间和(3)睡眠时间问卷(STQ)的稳定性。因变量：匹兹堡睡眠质量指数(PSQI)得分、卧床时间、睡眠时间和睡眠效率，来自睡眠计时问卷(STQ)。清晨定向度、睡前稳定性和起床时间稳定性都与较好的睡眠质量有关(P<；0.001，对所有人；效应大小分别为0.43、0.33和0.27)。清晨与较短的上床时间(P<；0.0001，效应值0.45)和睡眠时间(P<；0.005，效应值0.26)相关。对上床睡觉时间和起床时间稳定性的影响方向相似，但大多较弱。结论：在退休老年人中，晨间取向和上床睡觉时间和起床时间的规律性似乎与主观睡眠质量的改善和卧床时间的减少有关。
Study Objectives: Using telephone interview data from retired seniors to explore how inter-individual differences in circadian type (morningness) and bed-timing regularity might be related to subjective sleep quality and quantity.Design: MANCOVA with binary measures of morningness, stability of bedtimes, and stability of rise-times as independent variables; sleep measures as dependent variables; age, former shift work, and gender as covariates.Setting: Telephone interviews using a pseudo-random age-targeted sampling process.Participants: 654 retired seniors (65 y+, 363M, 291F).Intervention: none.Measurements and Results: Independent variables: (1) circadian type (from Composite Scale of Morningness [CSM]), and stability of (2) bedtime and (3) rise-time from the Sleep Timing Questionnaire (STQ). Dependent variables: Pittsburgh Sleep Quality Index (PSQI) score, time in bed, time spent asleep, and sleep efficiency, from Sleep Timing Questionnaire (STQ). Morning-type orientation, stability in bedtimes, and stability in rise-times were all associated with better sleep quality (P < 0.001, for all; effect sizes: 0.43, 0.33, and 0.27). Morningness was associated with shorter time in bed (P < 0.0001, effect size 0.45) and time spent asleep (P < 0.005, effect size 0.26). For bedtime and rise-time stability the direction of effect was similar but mostly weaker.Conclusions: In retired seniors, a morning-type orientation and regularity in bedtimes and rise-times appear to be correlated with improved subjective sleep quality and with less time spent in bed.