Variability in Self-Reported Normal Sleep Across the Adult Age Span
Variability in Self-Reported Normal Sleep Across the Adult Age Span
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DOI：
10.1093/geronb/gbu035
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发表时间：
2015-01-01
影响因子：
6.2
通讯作者：
Bush, Andrew J.
中科院分区：
文献类型：
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作者：
Dillon, Haley R.;Lichstein, Kenneth L.;Bush, Andrew J.
目标。说明检查成人年龄跨度内和人与人之间睡眠差异的重要性。方法。对 592 名年龄从 20 岁到 96 岁的正常睡眠者两周的睡眠日记数据进行了分析。利用多水平模型和多元回归，按年龄、性别和种族总体检查总睡眠时间 (TST)、夜间觉醒次数 (NWAK)、入睡潜伏期 (SOL) 和入睡后醒来时间 (WASO) 的变异性。结果。同一个人的夜间睡眠差异通常超过个体之间 TST、SOL 和 WASO 的差异。 TST 和 NWAK 的个体差异量随着年龄的增长而减少。此外，与年龄相关的 TST 变异性降低程度取决于性别和种族，年轻的黑人女性表现出最大的变异性。一般来说，女性在 SOL 和 NWAK 方面往往比男性有更多的个体差异，而种族差异因黑人之间的高差异而变得复杂。讨论。为了真正评估和了解老年人睡眠的个体差异，除了平均睡眠之外，未来的研究还需要考虑每晚的变异性（包括导致睡眠从一晚到下一晚不同的原因）。
Objectives. Illustrate the importance of examining within- and between-person differences in sleep across the adult age span.Method. Two weeks of sleep diary data were analyzed for 592 normal sleepers ranging in age from 20 to 96 years. Variability in total sleep time (TST), number of nighttime awakenings (NWAK), sleep-onset latency (SOL), and wake-time after sleep onset (WASO) were examined overall and by age, sex, and race utilizing multilevel models and multiple regression.Results. Night-to-night differences in sleep within the same individual generally exceeded differences between individuals for TST, SOL, and WASO. The amount of intraindividual variability in TST and NWAK decreased with older age. Further, the degree of reduction in variability in TST associated with age depended on sex and race, with young black females showing the greatest variability. In general, females tended to have more intraindividual variability in SOL and NWAK than males, while race differences were complicated by high variability between blacks.Discussion. To truly assess and understand individual differences in the sleep of older adults, future research needs to take into account night-to-night variability (including what makes sleep vary from one night to the next), in addition to average sleep.